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diff --git a/algorithms/algorithms-correctness/postcondition-ambiguity/index.html b/algorithms/algorithms-correctness/postcondition-ambiguity/index.html index 0e018e2..1bde907 100644 --- a/algorithms/algorithms-correctness/postcondition-ambiguity/index.html +++ b/algorithms/algorithms-correctness/postcondition-ambiguity/index.html @@ -16,8 +16,8 @@ - - + +
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Vague postconditions and proving correctness of algorithms

Introduction​

diff --git a/algorithms/category/algorithms-and-correctness/index.html b/algorithms/category/algorithms-and-correctness/index.html index 44d17de..f4121da 100644 --- a/algorithms/category/algorithms-and-correctness/index.html +++ b/algorithms/category/algorithms-and-correctness/index.html @@ -18,8 +18,8 @@ correctness. - - + +

Algorithms and Correctness

Materials related to basic ideas behind algorithms and proofs of their diff --git a/algorithms/category/asymptotic-notation-and-time-complexity/index.html b/algorithms/category/asymptotic-notation-and-time-complexity/index.html index 60a3dfc..0719d32 100644 --- a/algorithms/category/asymptotic-notation-and-time-complexity/index.html +++ b/algorithms/category/asymptotic-notation-and-time-complexity/index.html @@ -16,8 +16,8 @@ - - + +

Asymptotic Notation and Time Complexity

Materials related to asymptotic notation and time complexity. diff --git a/algorithms/category/graphs/index.html b/algorithms/category/graphs/index.html index 52730db..e88389c 100644 --- a/algorithms/category/graphs/index.html +++ b/algorithms/category/graphs/index.html @@ -16,8 +16,8 @@ - - + +

Graphs

Materials related to basic graph algorithms and graph problems. diff --git a/algorithms/category/hash-tables/index.html b/algorithms/category/hash-tables/index.html index 41edc2e..0d9b51c 100644 --- a/algorithms/category/hash-tables/index.html +++ b/algorithms/category/hash-tables/index.html @@ -16,8 +16,8 @@ - - + +

Hash Tables

Materials related to hash tables. diff --git a/algorithms/category/paths-in-graphs/index.html b/algorithms/category/paths-in-graphs/index.html index 13b5c76..6b72df4 100644 --- a/algorithms/category/paths-in-graphs/index.html +++ b/algorithms/category/paths-in-graphs/index.html @@ -16,8 +16,8 @@ - - + +

Paths in Graphs

Materials related to finding paths in graphs. diff --git a/algorithms/category/recursion/index.html b/algorithms/category/recursion/index.html index 90c971e..52d0958 100644 --- a/algorithms/category/recursion/index.html +++ b/algorithms/category/recursion/index.html @@ -16,8 +16,8 @@ - - + +

Recursion

Materials related to recursive algorithms and their time complexity. diff --git a/algorithms/category/red-black-trees/index.html b/algorithms/category/red-black-trees/index.html index 23bb967..6eb02c9 100644 --- a/algorithms/category/red-black-trees/index.html +++ b/algorithms/category/red-black-trees/index.html @@ -16,8 +16,8 @@ - - + +

Red-Black Trees

Materials related to red-black trees. diff --git a/algorithms/graphs/bfs-tree/index.html b/algorithms/graphs/bfs-tree/index.html index 26d24b5..29dc08b 100644 --- a/algorithms/graphs/bfs-tree/index.html +++ b/algorithms/graphs/bfs-tree/index.html @@ -16,8 +16,8 @@ - - + +

Distance boundaries from BFS tree on undirected graphs

Introduction​

diff --git a/algorithms/graphs/iterative-and-iterators/index.html b/algorithms/graphs/iterative-and-iterators/index.html index 72435cc..de7c7b7 100644 --- a/algorithms/graphs/iterative-and-iterators/index.html +++ b/algorithms/graphs/iterative-and-iterators/index.html @@ -16,8 +16,8 @@ - - + +

Iterative algorithms via iterators

Introduction​

diff --git a/algorithms/hash-tables/breaking/index.html b/algorithms/hash-tables/breaking/index.html index 8af3162..9f78f55 100644 --- a/algorithms/hash-tables/breaking/index.html +++ b/algorithms/hash-tables/breaking/index.html @@ -16,8 +16,8 @@ - - + +

Breaking Hash Table

We will try to break a hash table and discuss possible ways how to prevent such diff --git a/algorithms/hash-tables/breaking/mitigations/index.html b/algorithms/hash-tables/breaking/mitigations/index.html index 442d44a..f9e0f6c 100644 --- a/algorithms/hash-tables/breaking/mitigations/index.html +++ b/algorithms/hash-tables/breaking/mitigations/index.html @@ -16,8 +16,8 @@ - - + +

Possible Mitigations

There are multiple ways the issues created above can be mitigated. Still we can diff --git a/algorithms/hash-tables/breaking/python/index.html b/algorithms/hash-tables/breaking/python/index.html index 00c0ed2..8842389 100644 --- a/algorithms/hash-tables/breaking/python/index.html +++ b/algorithms/hash-tables/breaking/python/index.html @@ -16,8 +16,8 @@ - - + +

Breaking the Hash Table in Python

diff --git a/algorithms/index.html b/algorithms/index.html index 7b7fcd1..dd9e99f 100644 --- a/algorithms/index.html +++ b/algorithms/index.html @@ -14,8 +14,8 @@ - - + +

Introduction

In this part you can find “random” additional materials I have written over the @@ -23,6 +23,6 @@ course of teaching Algorithms and data structures I.

It is a various mix of stuff that may have been produced as a follow-up on some question asked at the seminar or spontanously.

If you have some ideas for posts, please do not hesitate to submit them as issues -in the linked GitLab.

+in the linked GitLab.

\ No newline at end of file diff --git a/algorithms/paths/bf-to-astar/astar/index.html b/algorithms/paths/bf-to-astar/astar/index.html index 0522a1a..be0723c 100644 --- a/algorithms/paths/bf-to-astar/astar/index.html +++ b/algorithms/paths/bf-to-astar/astar/index.html @@ -16,8 +16,8 @@ - - + +

A* algorithm

Intro​

diff --git a/algorithms/paths/bf-to-astar/bf/index.html b/algorithms/paths/bf-to-astar/bf/index.html index 514667a..290417e 100644 --- a/algorithms/paths/bf-to-astar/bf/index.html +++ b/algorithms/paths/bf-to-astar/bf/index.html @@ -18,8 +18,8 @@ something. - - + +

BF

Basic idea​

diff --git a/algorithms/paths/bf-to-astar/dijkstra/index.html b/algorithms/paths/bf-to-astar/dijkstra/index.html index 55cbd4f..2b264d3 100644 --- a/algorithms/paths/bf-to-astar/dijkstra/index.html +++ b/algorithms/paths/bf-to-astar/dijkstra/index.html @@ -16,8 +16,8 @@ - - + +

Dijkstra's algorithm

Intro​

diff --git a/algorithms/paths/bf-to-astar/index.html b/algorithms/paths/bf-to-astar/index.html index 299ef8c..b9bf28a 100644 --- a/algorithms/paths/bf-to-astar/index.html +++ b/algorithms/paths/bf-to-astar/index.html @@ -16,8 +16,8 @@ - - + +

From BF to A*

Intro​

diff --git a/algorithms/rb-trees/applications/index.html b/algorithms/rb-trees/applications/index.html index 55c60a6..ad3d439 100644 --- a/algorithms/rb-trees/applications/index.html +++ b/algorithms/rb-trees/applications/index.html @@ -16,8 +16,8 @@ - - + +

Použití červeno-černých stromů

Použití​

diff --git a/algorithms/rb-trees/rules/index.html b/algorithms/rb-trees/rules/index.html index 45482cf..a6266c2 100644 --- a/algorithms/rb-trees/rules/index.html +++ b/algorithms/rb-trees/rules/index.html @@ -16,8 +16,8 @@ - - + +

On the rules of the red-black tree

Introduction​

diff --git a/algorithms/recursion/karel/index.html b/algorithms/recursion/karel/index.html index e58387b..41b4d68 100644 --- a/algorithms/recursion/karel/index.html +++ b/algorithms/recursion/karel/index.html @@ -16,8 +16,8 @@ - - + +

Recursion and backtracking with Robot Karel

    diff --git a/algorithms/recursion/karel/solution/index.html b/algorithms/recursion/karel/solution/index.html index e9fbf09..e326772 100644 --- a/algorithms/recursion/karel/solution/index.html +++ b/algorithms/recursion/karel/solution/index.html @@ -16,8 +16,8 @@ - - + +

    Solving the maze problem

    diff --git a/algorithms/recursion/pyramid-slide-down/bottom-up-dp/index.html b/algorithms/recursion/pyramid-slide-down/bottom-up-dp/index.html index 6320266..e3f2cdc 100644 --- a/algorithms/recursion/pyramid-slide-down/bottom-up-dp/index.html +++ b/algorithms/recursion/pyramid-slide-down/bottom-up-dp/index.html @@ -16,8 +16,8 @@ - - + +

    Bottom-up dynamic programming

    diff --git a/algorithms/recursion/pyramid-slide-down/greedy/index.html b/algorithms/recursion/pyramid-slide-down/greedy/index.html index a0befdb..1e8dc4e 100644 --- a/algorithms/recursion/pyramid-slide-down/greedy/index.html +++ b/algorithms/recursion/pyramid-slide-down/greedy/index.html @@ -16,8 +16,8 @@ - - + +

    Greedy solution

    We will try to optimize it a bit. Let's start with a relatively simple greedy diff --git a/algorithms/recursion/pyramid-slide-down/index.html b/algorithms/recursion/pyramid-slide-down/index.html index c24925b..49b9b0a 100644 --- a/algorithms/recursion/pyramid-slide-down/index.html +++ b/algorithms/recursion/pyramid-slide-down/index.html @@ -16,8 +16,8 @@ - - + +

    Introduction to dynamic programming

    In this series we will try to solve one problem in different ways.

    diff --git a/algorithms/recursion/pyramid-slide-down/naive/index.html b/algorithms/recursion/pyramid-slide-down/naive/index.html index 9daeda7..6f1d528 100644 --- a/algorithms/recursion/pyramid-slide-down/naive/index.html +++ b/algorithms/recursion/pyramid-slide-down/naive/index.html @@ -16,8 +16,8 @@ - - + +

    Naïve solution

    Our naïve solution consists of trying out all the possible slides and finding diff --git a/algorithms/recursion/pyramid-slide-down/top-down-dp/index.html b/algorithms/recursion/pyramid-slide-down/top-down-dp/index.html index 9e6698d..0aec925 100644 --- a/algorithms/recursion/pyramid-slide-down/top-down-dp/index.html +++ b/algorithms/recursion/pyramid-slide-down/top-down-dp/index.html @@ -16,8 +16,8 @@ - - + +

    Top-down dynamic programming

    diff --git a/algorithms/tags/a-star/index.html b/algorithms/tags/a-star/index.html index 3637405..a8c7f44 100644 --- a/algorithms/tags/a-star/index.html +++ b/algorithms/tags/a-star/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "a star"

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    From BF to A*

    Figuring out shortest-path problem from the BF to the A* algorithm. diff --git a/algorithms/tags/applications/index.html b/algorithms/tags/applications/index.html index cd58f2a..0f0b696 100644 --- a/algorithms/tags/applications/index.html +++ b/algorithms/tags/applications/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "applications"

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    Použití červeno-černých stromů

    Ukázka použití červeno-černých stromů v standardních knižnicích známých jazyků. diff --git a/algorithms/tags/astar/index.html b/algorithms/tags/astar/index.html index eb9a142..8ed249b 100644 --- a/algorithms/tags/astar/index.html +++ b/algorithms/tags/astar/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "astar"

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    A* algorithm

    Moving from Dijkstra's algorithm into the A* algorithm. diff --git a/algorithms/tags/backtracking/index.html b/algorithms/tags/backtracking/index.html index dcf4599..531f991 100644 --- a/algorithms/tags/backtracking/index.html +++ b/algorithms/tags/backtracking/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "backtracking"

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    Recursion and backtracking with Robot Karel

    A problem with too many restrictions. diff --git a/algorithms/tags/balanced-trees/index.html b/algorithms/tags/balanced-trees/index.html index 608e4f8..1d44146 100644 --- a/algorithms/tags/balanced-trees/index.html +++ b/algorithms/tags/balanced-trees/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "balanced trees"

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    On the rules of the red-black tree

    Shower thoughts on the rules of the red-black tree. diff --git a/algorithms/tags/bellman-ford/index.html b/algorithms/tags/bellman-ford/index.html index 9cfec35..cbe5771 100644 --- a/algorithms/tags/bellman-ford/index.html +++ b/algorithms/tags/bellman-ford/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "bellman ford"

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    BF

    Solving the shortest path problem with a naïve approach that turns into diff --git a/algorithms/tags/bfs/index.html b/algorithms/tags/bfs/index.html index 2478b5c..629b536 100644 --- a/algorithms/tags/bfs/index.html +++ b/algorithms/tags/bfs/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "bfs"

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    Distance boundaries from BFS tree on undirected graphs

    Short explanation of distance boundaries deduced from a BFS tree. diff --git a/algorithms/tags/bottom-up-dp/index.html b/algorithms/tags/bottom-up-dp/index.html index 1168caa..8531042 100644 --- a/algorithms/tags/bottom-up-dp/index.html +++ b/algorithms/tags/bottom-up-dp/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "bottom-up-dp"

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    Bottom-up DP solution

    Bottom-up DP solution of the Pyramid Slide Down. diff --git a/algorithms/tags/brute-force/index.html b/algorithms/tags/brute-force/index.html index c8ae685..b489d86 100644 --- a/algorithms/tags/brute-force/index.html +++ b/algorithms/tags/brute-force/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "brute force"

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    BF

    Solving the shortest path problem with a naïve approach that turns into diff --git a/algorithms/tags/c/index.html b/algorithms/tags/c/index.html index 90faa96..5aa1223 100644 --- a/algorithms/tags/c/index.html +++ b/algorithms/tags/c/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "c"

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    Time complexity of ‹extend›

    How to make inefficient algorithm unknowingly. diff --git a/algorithms/tags/cpp/index.html b/algorithms/tags/cpp/index.html index c186b1d..3693f12 100644 --- a/algorithms/tags/cpp/index.html +++ b/algorithms/tags/cpp/index.html @@ -14,8 +14,8 @@ - - + +

    7 docs tagged with "cpp"

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    A* algorithm

    Moving from Dijkstra's algorithm into the A* algorithm. diff --git a/algorithms/tags/csharp/index.html b/algorithms/tags/csharp/index.html index 2be24e8..1395dea 100644 --- a/algorithms/tags/csharp/index.html +++ b/algorithms/tags/csharp/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "csharp"

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    Iterative algorithms via iterators

    Iterative DFS using iterators. diff --git a/algorithms/tags/dijkstra/index.html b/algorithms/tags/dijkstra/index.html index 5aa7618..114f5b7 100644 --- a/algorithms/tags/dijkstra/index.html +++ b/algorithms/tags/dijkstra/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "dijkstra"

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    Dijkstra's algorithm

    Moving from Bellman-Ford into the Dijsktra's algorithm. diff --git a/algorithms/tags/dynamic-array/index.html b/algorithms/tags/dynamic-array/index.html index 4749cd5..ea39229 100644 --- a/algorithms/tags/dynamic-array/index.html +++ b/algorithms/tags/dynamic-array/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "dynamic array"

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    Time complexity of ‹extend›

    How to make inefficient algorithm unknowingly. diff --git a/algorithms/tags/dynamic-programming/index.html b/algorithms/tags/dynamic-programming/index.html index 9ae1a5e..24e8eba 100644 --- a/algorithms/tags/dynamic-programming/index.html +++ b/algorithms/tags/dynamic-programming/index.html @@ -14,8 +14,8 @@ - - + +

    7 docs tagged with "dynamic programming"

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    A* algorithm

    Moving from Dijkstra's algorithm into the A* algorithm. diff --git a/algorithms/tags/exponential/index.html b/algorithms/tags/exponential/index.html index af52743..ac613e1 100644 --- a/algorithms/tags/exponential/index.html +++ b/algorithms/tags/exponential/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "exponential"

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    Introduction to dynamic programming

    Solving a problem in different ways. diff --git a/algorithms/tags/graphs/index.html b/algorithms/tags/graphs/index.html index ba2efc3..f25e174 100644 --- a/algorithms/tags/graphs/index.html +++ b/algorithms/tags/graphs/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "graphs"

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    Distance boundaries from BFS tree on undirected graphs

    Short explanation of distance boundaries deduced from a BFS tree. diff --git a/algorithms/tags/greedy/index.html b/algorithms/tags/greedy/index.html index 8f6126b..18df5a2 100644 --- a/algorithms/tags/greedy/index.html +++ b/algorithms/tags/greedy/index.html @@ -14,8 +14,8 @@ - - + +

    4 docs tagged with "greedy"

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    Dijkstra's algorithm

    Moving from Bellman-Ford into the Dijsktra's algorithm. diff --git a/algorithms/tags/hash-tables/index.html b/algorithms/tags/hash-tables/index.html index 06a3508..5dd90b4 100644 --- a/algorithms/tags/hash-tables/index.html +++ b/algorithms/tags/hash-tables/index.html @@ -14,8 +14,8 @@ - - + +

    3 docs tagged with "hash-tables"

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    Breaking Hash Table

    How to get the linear time complexity in a hash table. diff --git a/algorithms/tags/index.html b/algorithms/tags/index.html index 5526f2d..ef2dbe5 100644 --- a/algorithms/tags/index.html +++ b/algorithms/tags/index.html @@ -14,8 +14,8 @@ - - + +

    Tags

    diff --git a/algorithms/tags/iterative/index.html b/algorithms/tags/iterative/index.html index ea1c4d0..e6a98a6 100644 --- a/algorithms/tags/iterative/index.html +++ b/algorithms/tags/iterative/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "iterative"

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    Iterative algorithms via iterators

    Iterative DFS using iterators. diff --git a/algorithms/tags/iterators/index.html b/algorithms/tags/iterators/index.html index 92efb44..550d1ef 100644 --- a/algorithms/tags/iterators/index.html +++ b/algorithms/tags/iterators/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "iterators"

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    Iterative algorithms via iterators

    Iterative DFS using iterators. diff --git a/algorithms/tags/java/index.html b/algorithms/tags/java/index.html index fb26970..bf13822 100644 --- a/algorithms/tags/java/index.html +++ b/algorithms/tags/java/index.html @@ -14,8 +14,8 @@ - - + +

    5 docs tagged with "java"

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    Bottom-up DP solution

    Bottom-up DP solution of the Pyramid Slide Down. diff --git a/algorithms/tags/karel/index.html b/algorithms/tags/karel/index.html index 276c9f1..6e72795 100644 --- a/algorithms/tags/karel/index.html +++ b/algorithms/tags/karel/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "karel"

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    Recursion and backtracking with Robot Karel

    A problem with too many restrictions. diff --git a/algorithms/tags/postconditions/index.html b/algorithms/tags/postconditions/index.html index aa3d4e4..d8f96ba 100644 --- a/algorithms/tags/postconditions/index.html +++ b/algorithms/tags/postconditions/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "postconditions"

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    Vague postconditions and proving correctness of algorithms

    Debugging and testing with precise postconditions. diff --git a/algorithms/tags/python/index.html b/algorithms/tags/python/index.html index 3bd02e3..a7b39cc 100644 --- a/algorithms/tags/python/index.html +++ b/algorithms/tags/python/index.html @@ -14,8 +14,8 @@ - - + +

    7 docs tagged with "python"

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    Breaking Hash Table

    How to get the linear time complexity in a hash table. diff --git a/algorithms/tags/recursion/index.html b/algorithms/tags/recursion/index.html index e9cba44..2677789 100644 --- a/algorithms/tags/recursion/index.html +++ b/algorithms/tags/recursion/index.html @@ -14,8 +14,8 @@ - - + +

    5 docs tagged with "recursion"

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    Introduction to dynamic programming

    Solving a problem in different ways. diff --git a/algorithms/tags/red-black-trees/index.html b/algorithms/tags/red-black-trees/index.html index 5d962f6..fae94d1 100644 --- a/algorithms/tags/red-black-trees/index.html +++ b/algorithms/tags/red-black-trees/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "red-black trees"

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    On the rules of the red-black tree

    Shower thoughts on the rules of the red-black tree. diff --git a/algorithms/tags/solution/index.html b/algorithms/tags/solution/index.html index 6409b75..50c4c08 100644 --- a/algorithms/tags/solution/index.html +++ b/algorithms/tags/solution/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "solution"

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    Solution to the problem

    Solving the problem introduced in the previous post. diff --git a/algorithms/tags/sorting/index.html b/algorithms/tags/sorting/index.html index 9b414bc..16ac0f0 100644 --- a/algorithms/tags/sorting/index.html +++ b/algorithms/tags/sorting/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "sorting"

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    Vague postconditions and proving correctness of algorithms

    Debugging and testing with precise postconditions. diff --git a/algorithms/tags/testing/index.html b/algorithms/tags/testing/index.html index 42607ac..8ddeed2 100644 --- a/algorithms/tags/testing/index.html +++ b/algorithms/tags/testing/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "testing"

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    Vague postconditions and proving correctness of algorithms

    Debugging and testing with precise postconditions. diff --git a/algorithms/tags/time-complexity/index.html b/algorithms/tags/time-complexity/index.html index 57c3cc1..edb8d03 100644 --- a/algorithms/tags/time-complexity/index.html +++ b/algorithms/tags/time-complexity/index.html @@ -14,8 +14,8 @@ - - + +

    One doc tagged with "time complexity"

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    Time complexity of ‹extend›

    How to make inefficient algorithm unknowingly. diff --git a/algorithms/tags/top-down-dp/index.html b/algorithms/tags/top-down-dp/index.html index 9bedb27..4212445 100644 --- a/algorithms/tags/top-down-dp/index.html +++ b/algorithms/tags/top-down-dp/index.html @@ -14,8 +14,8 @@ - - + +

    2 docs tagged with "top-down-dp"

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    Introduction to dynamic programming

    Solving a problem in different ways. diff --git a/algorithms/time-complexity/extend/index.html b/algorithms/time-complexity/extend/index.html index b01eda3..220a67b 100644 --- a/algorithms/time-complexity/extend/index.html +++ b/algorithms/time-complexity/extend/index.html @@ -16,8 +16,8 @@ - - + +

    Time complexity of ‹extend›

    Introduction​

    diff --git a/assets/js/1535ede8.3c894b1e.js b/assets/js/1535ede8.6aa7ffe0.js similarity index 99% rename from assets/js/1535ede8.3c894b1e.js rename to assets/js/1535ede8.6aa7ffe0.js index d8aa4f0..85354c7 100644 --- a/assets/js/1535ede8.3c894b1e.js +++ b/assets/js/1535ede8.6aa7ffe0.js @@ -1 +1 @@ -"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[5376],{44969:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>c,contentTitle:()=>o,default:()=>h,frontMatter:()=>r,metadata:()=>a,toc:()=>l});var s=t(85893),i=t(11151);const r={id:"seminar-10",title:"10th seminar",description:"Finding bugs in a hangman.\n"},o=void 0,a={id:"bonuses/seminar-10",title:"10th seminar",description:"Finding bugs in a hangman.\n",source:"@site/c/bonuses/10.md",sourceDirName:"bonuses",slug:"/bonuses/seminar-10",permalink:"/c/bonuses/seminar-10",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/bonuses/10.md",tags:[],version:"current",lastUpdatedAt:1704558496,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{id:"seminar-10",title:"10th seminar",description:"Finding bugs in a hangman.\n"},sidebar:"autogeneratedBar",previous:{title:"8th seminar",permalink:"/c/bonuses/seminar-08"},next:{title:"Practice Exams",permalink:"/c/category/practice-exams"}},c={},l=[{value:"Introduction",id:"introduction",level:2},{value:"Project",id:"project",level:2},{value:"Summary of the gameplay",id:"summary-of-the-gameplay",level:3},{value:"Suggested workflow",id:"suggested-workflow",level:2},{value:"Tasks",id:"tasks",level:2},{value:"Dictionary",id:"dictionary",level:2},{value:"Submitting",id:"submitting",level:2}];function d(e){const n={a:"a",blockquote:"blockquote",code:"code",em:"em",h2:"h2",h3:"h3",hr:"hr",img:"img",li:"li",ol:"ol",p:"p",pre:"pre",table:"table",tbody:"tbody",td:"td",th:"th",thead:"thead",tr:"tr",ul:"ul",...(0,i.a)(),...e.components};return(0,s.jsxs)(s.Fragment,{children:[(0,s.jsx)(n.p,{children:(0,s.jsx)(n.a,{href:"pathname:///files/c/bonuses/10.tar.gz",children:"Source"})}),"\n",(0,s.jsx)(n.h2,{id:"introduction",children:"Introduction"}),"\n",(0,s.jsx)(n.p,{children:"For this bonus you are given almost finished project - The Hangman Game. Your\ntask is to try the game, in case you find any bugs point them out and cover as\nmuch of the game as possible with tests."}),"\n",(0,s.jsx)(n.p,{children:"For this bonus you can get at maximum 2 K\u20a1."}),"\n",(0,s.jsxs)(n.table,{children:[(0,s.jsx)(n.thead,{children:(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.th,{children:"Item"}),(0,s.jsx)(n.th,{children:"Bonus"})]})}),(0,s.jsxs)(n.tbody,{children:[(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Fixing bugs from failing tests"}),(0,s.jsx)(n.td,{children:"0.25"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:(0,s.jsx)(n.code,{children:"word_guessed"})}),(0,s.jsx)(n.td,{children:"0.50"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Hidden bug"}),(0,s.jsx)(n.td,{children:"0.50"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Extending tests, undetectable bugs or evil bug"}),(0,s.jsx)(n.td,{children:"0.37"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Refactor"}),(0,s.jsx)(n.td,{children:"0.38"})]})]})]}),"\n",(0,s.jsx)(n.h2,{id:"project",children:"Project"}),"\n",(0,s.jsxs)(n.p,{children:["Project consists of 2 source files - ",(0,s.jsx)(n.code,{children:"hangman.c"})," and ",(0,s.jsx)(n.code,{children:"main.c"}),"."]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"main.c"})," is quite short and concise, there is nothing for you to do."]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"hangman.c"})," contains implementation of the game. In case you feel lost, consult\nthe documentation in ",(0,s.jsx)(n.code,{children:"hangman.h"})," that represents an interface that can be used\nfor implementing the game."]}),"\n",(0,s.jsxs)(n.p,{children:["Apart from those sources this project is a bit more complicated. ",(0,s.jsx)(n.em,{children:"Game loop"})," is\nrealised via single encapsulated function that complicates the testing. Because\nof that, there are 2 kinds of tests:"]}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.em,{children:"Unit tests"})," - that are present in ",(0,s.jsx)(n.code,{children:"test_hangman.c"})," and can be run via:"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"$ make check-unit\n"})}),"\n",(0,s.jsx)(n.p,{children:"They cover majorly functions that can be tested easily via testing framework."}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.em,{children:"Functional tests"})," - same as in ",(0,s.jsx)(n.code,{children:"seminar-08"})," and are focused on testing the\nprogram as whole. Basic smoke test is already included in ",(0,s.jsx)(n.code,{children:"usage"})," test case."]}),"\n",(0,s.jsx)(n.p,{children:"They can be run via:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"$ make check-functional\n"})}),"\n",(0,s.jsxs)(n.p,{children:["When testing ",(0,s.jsx)(n.code,{children:"hangman"})," function (the game loop), it is suggested to create\nfunctional tests."]}),"\n",(0,s.jsx)(n.p,{children:"When submitting the files for review, please leave out functional tests that\nwere given as a part of the assignment, so that it is easier to navigate, I\nwill drag the common files myself. :)"}),"\n"]}),"\n"]}),"\n",(0,s.jsxs)(n.blockquote,{children:["\n",(0,s.jsx)(n.p,{children:"Whole test suite can be run via:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"$ make check\n"})}),"\n"]}),"\n",(0,s.jsx)(n.h3,{id:"summary-of-the-gameplay",children:"Summary of the gameplay"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Secret word gets chosen from the file that's path is given as an argument."}),"\n",(0,s.jsx)(n.li,{children:"You get 8 guesses."}),"\n",(0,s.jsx)(n.li,{children:"Invalid characters don't count."}),"\n",(0,s.jsx)(n.li,{children:"Already guessed characters don't count, even if not included in the secret."}),"\n",(0,s.jsxs)(n.li,{children:["You can guess the whole word at once","\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:"If you get it right, you won, game ends."}),"\n",(0,s.jsx)(n.li,{children:"If you don't get it right, you get to see the secret, game ends."}),"\n"]}),"\n"]}),"\n",(0,s.jsx)(n.li,{children:"In case of end of input, game finishes via force."}),"\n",(0,s.jsx)(n.li,{children:"In case of invalid input, no guesses are subtracted, game carries on."}),"\n",(0,s.jsx)(n.li,{children:"Letters and words are not case sensitive."}),"\n"]}),"\n",(0,s.jsx)(n.h2,{id:"suggested-workflow",children:"Suggested workflow"}),"\n",(0,s.jsxs)(n.p,{children:["As we have talked about on the seminar, I suggest you to follow\n",(0,s.jsx)(n.em,{children:"Test-Driven Development"}),"\nin this case."]}),"\n",(0,s.jsx)(n.p,{children:(0,s.jsx)(n.img,{alt:"TDD workflow",src:t(27420).Z+"",width:"2814",height:"1652"})}),"\n",(0,s.jsx)(n.p,{children:"In our current scenario we are already in the stage of refactoring and fixing the\nbugs. Therefore try to follow this succession of steps:"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Try to reproduce the bug."}),"\n",(0,s.jsx)(n.li,{children:"Create a test that proves the presence of the bug."}),"\n",(0,s.jsx)(n.li,{children:"Fix the bug."}),"\n"]}),"\n",(0,s.jsxs)(n.p,{children:["In case you are submitting the bonus via GitLab, it is helpful to commit tests\nbefore commiting the fixes, so that it is apparent that the bug is manifested.\nExample of ",(0,s.jsx)(n.code,{children:"git log"})," (notice that the first line represents latest commit):"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"feat: Implement fizz_buzzer\ntest: Add tests for fizz_buzzer\nfix: Fix NULL-check in print_name\ntest: Add test for NULL in print_name\n"})}),"\n",(0,s.jsx)(n.h2,{id:"tasks",children:"Tasks"}),"\n",(0,s.jsx)(n.p,{children:"As to your tasks, there are multiple things wrong in this project."}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:'There are 2 "bugs" that cannot be detected via tests, i.e. they are not bugs\nthat affect functionality of the game.'}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["There is one evil bug in ",(0,s.jsx)(n.code,{children:"get_word"}),". It is not required to be fixed ;) Assign\nit the lowest priority."]}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"There are some tests failing. Please try to figure it out, so you have green\ntests for the rest :)"}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["We have gotten a bug report for ",(0,s.jsx)(n.code,{children:"word_guessed"}),", all we got is"]}),"\n",(0,s.jsxs)(n.blockquote,{children:["\n",(0,s.jsxs)(n.p,{children:["doesn't work when there are too many ",(0,s.jsx)(n.code,{children:"a"}),"s"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"Please try to replicate the bug and create a tests, so we don't get any\nregression later on."}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"One hidden bug :) Closely non-specified, we cannot reproduce it and we were\ndrunk while playing the game, so we don't remember a thing. :/"}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"Try to cover as much code via the tests as possible. We are not going to look\nat the metrics, but DRY is violated a lot, so as a last task try to remove as\nmuch of the duplicit code as possible."}),"\n",(0,s.jsx)(n.p,{children:"Tests should help you a lot in case there are some regressions."}),"\n"]}),"\n"]}),"\n",(0,s.jsx)(n.hr,{}),"\n",(0,s.jsxs)(n.p,{children:["In case you wonder why there are always 3 same words in the file with words, it\nis because of the ",(0,s.jsx)(n.code,{children:"get_word"})," bug. 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Your\ntask is to try the game, in case you find any bugs point them out and cover as\nmuch of the game as possible with tests."}),"\n",(0,s.jsx)(n.p,{children:"For this bonus you can get at maximum 2 K\u20a1."}),"\n",(0,s.jsxs)(n.table,{children:[(0,s.jsx)(n.thead,{children:(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.th,{children:"Item"}),(0,s.jsx)(n.th,{children:"Bonus"})]})}),(0,s.jsxs)(n.tbody,{children:[(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Fixing bugs from failing tests"}),(0,s.jsx)(n.td,{children:"0.25"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:(0,s.jsx)(n.code,{children:"word_guessed"})}),(0,s.jsx)(n.td,{children:"0.50"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Hidden bug"}),(0,s.jsx)(n.td,{children:"0.50"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Extending tests, undetectable bugs or evil bug"}),(0,s.jsx)(n.td,{children:"0.37"})]}),(0,s.jsxs)(n.tr,{children:[(0,s.jsx)(n.td,{children:"Refactor"}),(0,s.jsx)(n.td,{children:"0.38"})]})]})]}),"\n",(0,s.jsx)(n.h2,{id:"project",children:"Project"}),"\n",(0,s.jsxs)(n.p,{children:["Project consists of 2 source files - ",(0,s.jsx)(n.code,{children:"hangman.c"})," and ",(0,s.jsx)(n.code,{children:"main.c"}),"."]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"main.c"})," is quite short and concise, there is nothing for you to do."]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"hangman.c"})," contains implementation of the game. In case you feel lost, consult\nthe documentation in ",(0,s.jsx)(n.code,{children:"hangman.h"})," that represents an interface that can be used\nfor implementing the game."]}),"\n",(0,s.jsxs)(n.p,{children:["Apart from those sources this project is a bit more complicated. ",(0,s.jsx)(n.em,{children:"Game loop"})," is\nrealised via single encapsulated function that complicates the testing. Because\nof that, there are 2 kinds of tests:"]}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.em,{children:"Unit tests"})," - that are present in ",(0,s.jsx)(n.code,{children:"test_hangman.c"})," and can be run via:"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"$ make check-unit\n"})}),"\n",(0,s.jsx)(n.p,{children:"They cover majorly functions that can be tested easily via testing framework."}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.em,{children:"Functional tests"})," - same as in ",(0,s.jsx)(n.code,{children:"seminar-08"})," and are focused on testing the\nprogram as whole. Basic smoke test is already included in ",(0,s.jsx)(n.code,{children:"usage"})," test case."]}),"\n",(0,s.jsx)(n.p,{children:"They can be run via:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"$ make check-functional\n"})}),"\n",(0,s.jsxs)(n.p,{children:["When testing ",(0,s.jsx)(n.code,{children:"hangman"})," function (the game loop), it is suggested to create\nfunctional tests."]}),"\n",(0,s.jsx)(n.p,{children:"When submitting the files for review, please leave out functional tests that\nwere given as a part of the assignment, so that it is easier to navigate, I\nwill drag the common files myself. :)"}),"\n"]}),"\n"]}),"\n",(0,s.jsxs)(n.blockquote,{children:["\n",(0,s.jsx)(n.p,{children:"Whole test suite can be run via:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"$ make check\n"})}),"\n"]}),"\n",(0,s.jsx)(n.h3,{id:"summary-of-the-gameplay",children:"Summary of the gameplay"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Secret word gets chosen from the file that's path is given as an argument."}),"\n",(0,s.jsx)(n.li,{children:"You get 8 guesses."}),"\n",(0,s.jsx)(n.li,{children:"Invalid characters don't count."}),"\n",(0,s.jsx)(n.li,{children:"Already guessed characters don't count, even if not included in the secret."}),"\n",(0,s.jsxs)(n.li,{children:["You can guess the whole word at once","\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:"If you get it right, you won, game ends."}),"\n",(0,s.jsx)(n.li,{children:"If you don't get it right, you get to see the secret, game ends."}),"\n"]}),"\n"]}),"\n",(0,s.jsx)(n.li,{children:"In case of end of input, game finishes via force."}),"\n",(0,s.jsx)(n.li,{children:"In case of invalid input, no guesses are subtracted, game carries on."}),"\n",(0,s.jsx)(n.li,{children:"Letters and words are not case sensitive."}),"\n"]}),"\n",(0,s.jsx)(n.h2,{id:"suggested-workflow",children:"Suggested workflow"}),"\n",(0,s.jsxs)(n.p,{children:["As we have talked about on the seminar, I suggest you to follow\n",(0,s.jsx)(n.em,{children:"Test-Driven Development"}),"\nin this case."]}),"\n",(0,s.jsx)(n.p,{children:(0,s.jsx)(n.img,{alt:"TDD workflow",src:t(27420).Z+"",width:"2814",height:"1652"})}),"\n",(0,s.jsx)(n.p,{children:"In our current scenario we are already in the stage of refactoring and fixing the\nbugs. Therefore try to follow this succession of steps:"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Try to reproduce the bug."}),"\n",(0,s.jsx)(n.li,{children:"Create a test that proves the presence of the bug."}),"\n",(0,s.jsx)(n.li,{children:"Fix the bug."}),"\n"]}),"\n",(0,s.jsxs)(n.p,{children:["In case you are submitting the bonus via GitLab, it is helpful to commit tests\nbefore commiting the fixes, so that it is apparent that the bug is manifested.\nExample of ",(0,s.jsx)(n.code,{children:"git log"})," (notice that the first line represents latest commit):"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:"feat: Implement fizz_buzzer\ntest: Add tests for fizz_buzzer\nfix: Fix NULL-check in print_name\ntest: Add test for NULL in print_name\n"})}),"\n",(0,s.jsx)(n.h2,{id:"tasks",children:"Tasks"}),"\n",(0,s.jsx)(n.p,{children:"As to your tasks, there are multiple things wrong in this project."}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:'There are 2 "bugs" that cannot be detected via tests, i.e. they are not bugs\nthat affect functionality of the game.'}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["There is one evil bug in ",(0,s.jsx)(n.code,{children:"get_word"}),". It is not required to be fixed ;) Assign\nit the lowest priority."]}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"There are some tests failing. Please try to figure it out, so you have green\ntests for the rest :)"}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["We have gotten a bug report for ",(0,s.jsx)(n.code,{children:"word_guessed"}),", all we got is"]}),"\n",(0,s.jsxs)(n.blockquote,{children:["\n",(0,s.jsxs)(n.p,{children:["doesn't work when there are too many ",(0,s.jsx)(n.code,{children:"a"}),"s"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"Please try to replicate the bug and create a tests, so we don't get any\nregression later on."}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"One hidden bug :) Closely non-specified, we cannot reproduce it and we were\ndrunk while playing the game, so we don't remember a thing. :/"}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"Try to cover as much code via the tests as possible. We are not going to look\nat the metrics, but DRY is violated a lot, so as a last task try to remove as\nmuch of the duplicit code as possible."}),"\n",(0,s.jsx)(n.p,{children:"Tests should help you a lot in case there are some regressions."}),"\n"]}),"\n"]}),"\n",(0,s.jsx)(n.hr,{}),"\n",(0,s.jsxs)(n.p,{children:["In case you wonder why there are always 3 same words in the file with words, it\nis because of the ",(0,s.jsx)(n.code,{children:"get_word"})," bug. It is not a bug that can be easily fixed, so\nit is a not requirement at all and you can still get all points for the bonus ;)"]}),"\n",(0,s.jsx)(n.h2,{id:"dictionary",children:"Dictionary"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.a,{href:"https://en.wikipedia.org/wiki/Functional_testing",children:"Functional tests"})}),"\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.a,{href:"https://en.wikipedia.org/wiki/Smoke_testing_%28software%29",children:"Smoke test"})}),"\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.a,{href:"https://en.wikipedia.org/wiki/Don%27t_repeat_yourself",children:"DRY"})}),"\n"]}),"\n",(0,s.jsx)(n.h2,{id:"submitting",children:"Submitting"}),"\n",(0,s.jsx)(n.p,{children:"In case you have any questions, feel free to reach out to me."}),"\n",(0,s.jsx)(n.hr,{})]})}function h(e={}){const{wrapper:n}={...(0,i.a)(),...e.components};return n?(0,s.jsx)(n,{...e,children:(0,s.jsx)(d,{...e})}):d(e)}},27420:(e,n,t)=>{t.d(n,{Z:()=>s});const s=t.p+"assets/images/tdd_lifecycle-327ad9ee0ed8318ed11e19a28e02b2cc.png"},11151:(e,n,t)=>{t.d(n,{Z:()=>a,a:()=>o});var s=t(67294);const i={},r=s.createContext(i);function o(e){const n=s.useContext(r);return s.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function a(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(i):e.components||i:o(e.components),s.createElement(r.Provider,{value:n},e.children)}}}]); \ No newline at end of file diff --git a/assets/js/45c9e308.57b8321c.js b/assets/js/45c9e308.57b8321c.js deleted file mode 100644 index 31af421..0000000 --- a/assets/js/45c9e308.57b8321c.js +++ /dev/null @@ -1 +0,0 @@ -"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[7084],{53181:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>c,contentTitle:()=>r,default:()=>h,frontMatter:()=>o,metadata:()=>a,toc:()=>l});var i=t(85893),s=t(11151);const o={slug:"placeholders",title:"Placeholders",description:"Placeholders that are quite convenient to use when working on the code.\n",last_update:{date:new Date("2023-11-24T00:00:00.000Z")}},r=void 0,a={id:"exceptions-and-raii/2023-11-24-placeholders",title:"Placeholders",description:"Placeholders that are quite convenient to use when working on the code.\n",source:"@site/cpp/07-exceptions-and-raii/2023-11-24-placeholders.md",sourceDirName:"07-exceptions-and-raii",slug:"/exceptions-and-raii/placeholders",permalink:"/cpp/exceptions-and-raii/placeholders",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/cpp/07-exceptions-and-raii/2023-11-24-placeholders.md",tags:[],version:"current",lastUpdatedAt:1700784e3,formattedLastUpdatedAt:"Nov 24, 2023",frontMatter:{slug:"placeholders",title:"Placeholders",description:"Placeholders that are quite convenient to use when working on the code.\n",last_update:{date:"2023-11-24T00:00:00.000Z"}},sidebar:"autogeneratedBar",previous:{title:"Exceptions and RAII",permalink:"/cpp/category/exceptions-and-raii"},next:{title:"Environment",permalink:"/cpp/environment"}},c={},l=[{value:"Design",id:"design",level:2},{value:"Implementation",id:"implementation",level:2},{value:"Wrapping in a function",id:"wrapping-in-a-function",level:2},{value:"Magic trick",id:"magic-trick",level:2},{value:"Finishing off with 2 more exceptions",id:"finishing-off-with-2-more-exceptions",level:2}];function d(e){const n={a:"a",admonition:"admonition",code:"code",em:"em",h2:"h2",li:"li",ol:"ol",p:"p",pre:"pre",ul:"ul",...(0,s.a)(),...e.components};return(0,i.jsxs)(i.Fragment,{children:[(0,i.jsxs)(n.p,{children:["Here we will try to implement some placeholders that you can find in other\nlanguages, but I miss them in the C++. I'm taking the inspiration from languages\nlike Rust (all that we will implement) or Kotlin (",(0,i.jsx)(n.code,{children:"TODO"}),") that have them\nimplemented."]}),"\n",(0,i.jsx)(n.p,{children:"You may ask what placeholders do we need in the code, in our case we will be\ntalking about TODOs and unexpected situations, such as not implemented branches."}),"\n",(0,i.jsx)(n.p,{children:"Namely we will implement"}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"todo"}),","]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unimplemented"}),", and"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unreachable"}),"."]}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"design",children:"Design"}),"\n",(0,i.jsx)(n.p,{children:"If we take the two languages mentioned above as examples, there are at least two\nways how to implement them:"}),"\n",(0,i.jsxs)(n.ol,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.em,{children:"panic"})," when they are reached (as they do in Rust), or"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.em,{children:"raise"})," an exception when they are reached (as they do in Kotlin)."]}),"\n"]}),"\n",(0,i.jsxs)(n.p,{children:["I will choose raising an exception, since the closest equivalent of ",(0,i.jsx)(n.em,{children:"panic"})," in\nC++ would be ",(0,i.jsx)(n.code,{children:"assert"}),"s that are (by default) disabled in the ",(0,i.jsx)(n.em,{children:"release builds"}),"."]}),"\n",(0,i.jsx)(n.p,{children:"However I am too lazy to do:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'throw todo();\n// or\nthrow todo("optional note");\n'})}),"\n",(0,i.jsx)(n.p,{children:"Therefore we will implement exceptions and also wrap them in functions, so that\nwe can do:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'todo();\n// or\ntodo("optional note");\n'})}),"\n",(0,i.jsx)(n.admonition,{type:"tip",children:(0,i.jsx)(n.p,{children:"Wrapping them in a function (or macro) will allow us to do a little magic trick."})}),"\n",(0,i.jsx)(n.h2,{id:"implementation",children:"Implementation"}),"\n",(0,i.jsxs)(n.p,{children:["We're going to utilize the exceptions, so we'll need to include the ",(0,i.jsx)(n.code,{children:"exception"}),"\nheader and we will start with a simple ",(0,i.jsx)(n.code,{children:"_todo"})," exception class."]}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include \n#include \n\nclass _todo : public std::exception {\n std::string cause;\n\n public:\n _todo() : cause("not yet implemented") {}\n _todo(std::string&& excuse) : cause("not yet implemented: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n'})}),"\n",(0,i.jsx)(n.p,{children:"In this case we have 2 constructors:"}),"\n",(0,i.jsxs)(n.ol,{children:["\n",(0,i.jsxs)(n.li,{children:["default constructor without any parameters that will return just\n",(0,i.jsx)(n.code,{children:"not yet implemented"})]}),"\n",(0,i.jsxs)(n.li,{children:["and one parametrized with an \u201cexcuse\u201d that will return string like:\n",(0,i.jsx)(n.code,{children:"not yet implemented: \u2039excuse\u203a"})]}),"\n"]}),"\n",(0,i.jsx)(n.p,{children:"If we were to use it now, we would need to do something like:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include "placeholders.hpp"\n\nint main() {\n throw _todo();\n return 0;\n}\n'})}),"\n",(0,i.jsx)(n.h2,{id:"wrapping-in-a-function",children:"Wrapping in a function"}),"\n",(0,i.jsx)(n.p,{children:"I am a lazy person, so we will wrap the exception in a function that will throw\nit:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:"void todo() {\n throw _todo();\n}\n"})}),"\n",(0,i.jsx)(n.p,{children:"This can be used like:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include "placeholders.hpp"\n\nint main() {\n todo();\n return 0;\n}\n'})}),"\n",(0,i.jsx)(n.h2,{id:"magic-trick",children:"Magic trick"}),"\n",(0,i.jsxs)(n.p,{children:["At the beginning I've mentioned that by wrapping the exceptions in a helper\nfunctions that will throw them, we can do a nice magic trick ","\ud83d\ude04"," This trick\nwill consist of formatted string and for that we will use\n",(0,i.jsx)(n.a,{href:"https://en.cppreference.com/w/cpp/utility/format/format",children:(0,i.jsx)(n.code,{children:"std::format"})})," that is\navailable since C++20."]}),"\n",(0,i.jsxs)(n.p,{children:["We just need to add one more overload for our ",(0,i.jsx)(n.code,{children:"todo()"}),":"]}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:"#include \n\ntemplate< class... Args >\nvoid todo(std::format_string fmt, Args&&... args) {\n throw _todo(std::format(fmt, args...));\n}\n"})}),"\n",(0,i.jsx)(n.h2,{id:"finishing-off-with-2-more-exceptions",children:"Finishing off with 2 more exceptions"}),"\n",(0,i.jsx)(n.p,{children:"Now we can repeat the same process for the other two exceptions I've mentioned"}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unimplemented"}),", and"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unreachable"}),"."]}),"\n"]}),"\n",(0,i.jsx)(n.p,{children:"In the end we should end up with something like this:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include \n#include \n#include \n\nclass _todo : public std::exception {\n std::string cause;\n\n public:\n _todo() : cause("not yet implemented") {}\n _todo(std::string&& excuse) : cause("not yet implemented: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n\nvoid todo() { throw _todo(); }\n\ntemplate \nvoid todo(std::format_string fmt, Args&&... args) {\n throw _todo(std::format(fmt, args...));\n}\n\nclass _unimplemented : public std::exception {\n std::string cause;\n\n public:\n _unimplemented() : cause("not implemented") {}\n _unimplemented(std::string&& excuse)\n : cause("not implemented: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n\nvoid unimplemented() { throw _unimplemented(); }\n\ntemplate \nvoid unimplemented(std::format_string fmt, Args&&... args) {\n throw _unimplemented(std::format(fmt, args...));\n}\n\nclass _unreachable : public std::exception {\n std::string cause;\n\n public:\n _unreachable() : cause("entered unreachable code") {}\n _unreachable(std::string&& excuse)\n : cause("entered unreachable code: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n\nvoid unreachable() { throw _unreachable(); }\n\ntemplate \nvoid unreachable(std::format_string fmt, Args&&... args) {\n throw _unreachable(std::format(fmt, args...));\n}\n'})}),"\n",(0,i.jsx)(n.admonition,{type:"info",children:(0,i.jsxs)(n.p,{children:["Final source code: ",(0,i.jsx)(n.a,{href:"pathname:///files/cpp/exceptions-and-raii/placeholders/placeholders.hpp",children:(0,i.jsx)(n.code,{children:"placeholders.hpp"})})]})})]})}function h(e={}){const{wrapper:n}={...(0,s.a)(),...e.components};return n?(0,i.jsx)(n,{...e,children:(0,i.jsx)(d,{...e})}):d(e)}},11151:(e,n,t)=>{t.d(n,{Z:()=>a,a:()=>r});var i=t(67294);const s={},o=i.createContext(s);function r(e){const n=i.useContext(o);return i.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function a(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:r(e.components),i.createElement(o.Provider,{value:n},e.children)}}}]); \ No newline at end of file diff --git a/assets/js/45c9e308.e6839f8a.js b/assets/js/45c9e308.e6839f8a.js new file mode 100644 index 0000000..4a825e3 --- /dev/null +++ b/assets/js/45c9e308.e6839f8a.js @@ -0,0 +1 @@ +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[7084],{53181:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>c,contentTitle:()=>r,default:()=>h,frontMatter:()=>o,metadata:()=>a,toc:()=>l});var i=t(85893),s=t(11151);const o={slug:"placeholders",title:"Placeholders",description:"Placeholders that are quite convenient to use when working on the code.\n",last_update:{date:new Date("2023-11-24T00:00:00.000Z")}},r=void 0,a={id:"exceptions-and-raii/2023-11-24-placeholders",title:"Placeholders",description:"Placeholders that are quite convenient to use when working on the code.\n",source:"@site/cpp/07-exceptions-and-raii/2023-11-24-placeholders.md",sourceDirName:"07-exceptions-and-raii",slug:"/exceptions-and-raii/placeholders",permalink:"/cpp/exceptions-and-raii/placeholders",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/cpp/07-exceptions-and-raii/2023-11-24-placeholders.md",tags:[],version:"current",lastUpdatedAt:1700784e3,formattedLastUpdatedAt:"Nov 24, 2023",frontMatter:{slug:"placeholders",title:"Placeholders",description:"Placeholders that are quite convenient to use when working on the code.\n",last_update:{date:"2023-11-24T00:00:00.000Z"}},sidebar:"autogeneratedBar",previous:{title:"Exceptions and RAII",permalink:"/cpp/category/exceptions-and-raii"},next:{title:"Environment",permalink:"/cpp/environment"}},c={},l=[{value:"Design",id:"design",level:2},{value:"Implementation",id:"implementation",level:2},{value:"Wrapping in a function",id:"wrapping-in-a-function",level:2},{value:"Magic trick",id:"magic-trick",level:2},{value:"Finishing off with 2 more exceptions",id:"finishing-off-with-2-more-exceptions",level:2},{value:"Post-mortem",id:"post-mortem",level:2}];function d(e){const n={a:"a",admonition:"admonition",code:"code",em:"em",h2:"h2",li:"li",ol:"ol",p:"p",pre:"pre",strong:"strong",ul:"ul",...(0,s.a)(),...e.components};return(0,i.jsxs)(i.Fragment,{children:[(0,i.jsxs)(n.p,{children:["Here we will try to implement some placeholders that you can find in other\nlanguages, but I miss them in the C++. I'm taking the inspiration from languages\nlike Rust (all that we will implement) or Kotlin (",(0,i.jsx)(n.code,{children:"TODO"}),") that have them\nimplemented."]}),"\n",(0,i.jsx)(n.p,{children:"You may ask what placeholders do we need in the code, in our case we will be\ntalking about TODOs and unexpected situations, such as not implemented branches."}),"\n",(0,i.jsx)(n.p,{children:"Namely we will implement"}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"todo"}),","]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unimplemented"}),", and"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unreachable"}),"."]}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"design",children:"Design"}),"\n",(0,i.jsx)(n.p,{children:"If we take the two languages mentioned above as examples, there are at least two\nways how to implement them:"}),"\n",(0,i.jsxs)(n.ol,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.em,{children:"panic"})," when they are reached (as they do in Rust), or"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.em,{children:"raise"})," an exception when they are reached (as they do in Kotlin)."]}),"\n"]}),"\n",(0,i.jsxs)(n.p,{children:["I will choose raising an exception, since the closest equivalent of ",(0,i.jsx)(n.em,{children:"panic"})," in\nC++ would be ",(0,i.jsx)(n.code,{children:"assert"}),"s that are (by default) disabled in the ",(0,i.jsx)(n.em,{children:"release builds"}),"."]}),"\n",(0,i.jsx)(n.p,{children:"However I am too lazy to do:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'throw todo();\n// or\nthrow todo("optional note");\n'})}),"\n",(0,i.jsx)(n.p,{children:"Therefore we will implement exceptions and also wrap them in functions, so that\nwe can do:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'todo();\n// or\ntodo("optional note");\n'})}),"\n",(0,i.jsx)(n.admonition,{type:"tip",children:(0,i.jsx)(n.p,{children:"Wrapping them in a function (or macro) will allow us to do a little magic trick."})}),"\n",(0,i.jsx)(n.h2,{id:"implementation",children:"Implementation"}),"\n",(0,i.jsxs)(n.p,{children:["We're going to utilize the exceptions, so we'll need to include the ",(0,i.jsx)(n.code,{children:"exception"}),"\nheader and we will start with a simple ",(0,i.jsx)(n.code,{children:"_todo"})," exception class."]}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include \n#include \n\nclass _todo : public std::exception {\n std::string cause;\n\n public:\n _todo() : cause("not yet implemented") {}\n _todo(std::string&& excuse) : cause("not yet implemented: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n'})}),"\n",(0,i.jsx)(n.p,{children:"In this case we have 2 constructors:"}),"\n",(0,i.jsxs)(n.ol,{children:["\n",(0,i.jsxs)(n.li,{children:["default constructor without any parameters that will return just\n",(0,i.jsx)(n.code,{children:"not yet implemented"})]}),"\n",(0,i.jsxs)(n.li,{children:["and one parametrized with an \u201cexcuse\u201d that will return string like:\n",(0,i.jsx)(n.code,{children:"not yet implemented: \u2039excuse\u203a"})]}),"\n"]}),"\n",(0,i.jsx)(n.p,{children:"If we were to use it now, we would need to do something like:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include "placeholders.hpp"\n\nint main() {\n throw _todo();\n return 0;\n}\n'})}),"\n",(0,i.jsx)(n.h2,{id:"wrapping-in-a-function",children:"Wrapping in a function"}),"\n",(0,i.jsx)(n.p,{children:"I am a lazy person, so we will wrap the exception in a function that will throw\nit:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:"void todo() {\n throw _todo();\n}\n"})}),"\n",(0,i.jsx)(n.p,{children:"This can be used like:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include "placeholders.hpp"\n\nint main() {\n todo();\n return 0;\n}\n'})}),"\n",(0,i.jsx)(n.h2,{id:"magic-trick",children:"Magic trick"}),"\n",(0,i.jsxs)(n.p,{children:["At the beginning I've mentioned that by wrapping the exceptions in a helper\nfunctions that will throw them, we can do a nice magic trick ","\ud83d\ude04"," This trick\nwill consist of formatted string and for that we will use\n",(0,i.jsx)(n.a,{href:"https://en.cppreference.com/w/cpp/utility/format/format",children:(0,i.jsx)(n.code,{children:"std::format"})})," that is\navailable since C++20."]}),"\n",(0,i.jsxs)(n.p,{children:["We just need to add one more overload for our ",(0,i.jsx)(n.code,{children:"todo()"}),":"]}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:"#include \n\ntemplate< class... Args >\nvoid todo(std::format_string fmt, Args&&... args) {\n throw _todo(std::format(fmt, args...));\n}\n"})}),"\n",(0,i.jsx)(n.h2,{id:"finishing-off-with-2-more-exceptions",children:"Finishing off with 2 more exceptions"}),"\n",(0,i.jsx)(n.p,{children:"Now we can repeat the same process for the other two exceptions I've mentioned"}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unimplemented"}),", and"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"unreachable"}),"."]}),"\n"]}),"\n",(0,i.jsx)(n.p,{children:"In the end we should end up with something like this:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:'#include \n#include \n#include \n\nclass _todo : public std::exception {\n std::string cause;\n\n public:\n _todo() : cause("not yet implemented") {}\n _todo(std::string&& excuse) : cause("not yet implemented: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n\nvoid todo() { throw _todo(); }\n\ntemplate \nvoid todo(std::format_string fmt, Args&&... args) {\n throw _todo(std::format(fmt, args...));\n}\n\nclass _unimplemented : public std::exception {\n std::string cause;\n\n public:\n _unimplemented() : cause("not implemented") {}\n _unimplemented(std::string&& excuse)\n : cause("not implemented: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n\nvoid unimplemented() { throw _unimplemented(); }\n\ntemplate \nvoid unimplemented(std::format_string fmt, Args&&... args) {\n throw _unimplemented(std::format(fmt, args...));\n}\n\nclass _unreachable : public std::exception {\n std::string cause;\n\n public:\n _unreachable() : cause("entered unreachable code") {}\n _unreachable(std::string&& excuse)\n : cause("entered unreachable code: " + excuse) {}\n virtual const char* what() const throw() { return cause.c_str(); }\n};\n\nvoid unreachable() { throw _unreachable(); }\n\ntemplate \nvoid unreachable(std::format_string fmt, Args&&... args) {\n throw _unreachable(std::format(fmt, args...));\n}\n'})}),"\n",(0,i.jsx)(n.admonition,{type:"info",children:(0,i.jsxs)(n.p,{children:["Final source code: ",(0,i.jsx)(n.a,{href:"pathname:///files/cpp/exceptions-and-raii/placeholders/placeholders.hpp",children:(0,i.jsx)(n.code,{children:"placeholders.hpp"})})]})}),"\n",(0,i.jsx)(n.h2,{id:"post-mortem",children:"Post-mortem"}),"\n",(0,i.jsxs)(n.p,{children:["One of the things, I've forgotten about, is the fact that static analysis of\nyour code has no way to know those helper functions we've created as shortcuts\ndon't return and just throw the exception right away. Therefore we need to mark\nthem with ",(0,i.jsx)(n.code,{children:"[[noreturn]]"})," to let the static analysis know that we ",(0,i.jsx)(n.strong,{children:"never"}),"\nreturn from such functions. For example:"]}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{className:"language-cpp",children:"[[noreturn]] void unreachable() { throw _unreachable(); }\n\ntemplate \n[[noreturn]] void unreachable(std::format_string fmt, Args&&... args) {\n throw _unreachable(std::format(fmt, args...));\n}\n"})})]})}function h(e={}){const{wrapper:n}={...(0,s.a)(),...e.components};return n?(0,i.jsx)(n,{...e,children:(0,i.jsx)(d,{...e})}):d(e)}},11151:(e,n,t)=>{t.d(n,{Z:()=>a,a:()=>r});var i=t(67294);const s={},o=i.createContext(s);function r(e){const n=i.useContext(o);return i.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function a(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:r(e.components),i.createElement(o.Provider,{value:n},e.children)}}}]); \ No newline at end of file diff --git a/assets/js/595c7293.6ef41b13.js b/assets/js/595c7293.8ff94b95.js similarity index 99% rename from assets/js/595c7293.6ef41b13.js rename to assets/js/595c7293.8ff94b95.js index 90ff738..7b96390 100644 --- a/assets/js/595c7293.6ef41b13.js +++ b/assets/js/595c7293.8ff94b95.js @@ -1 +1 @@ -"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[5634],{58396:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>a,contentTitle:()=>o,default:()=>h,frontMatter:()=>r,metadata:()=>c,toc:()=>l});var i=t(85893),s=t(11151);const r={id:"seminar-08",title:"8th seminar",description:"Manipulating with files only char-by-char and a magic tree.\n"},o="8th seminar bonus assignment",c={id:"bonuses/seminar-08",title:"8th seminar",description:"Manipulating with files only char-by-char and a magic tree.\n",source:"@site/c/bonuses/08.md",sourceDirName:"bonuses",slug:"/bonuses/seminar-08",permalink:"/c/bonuses/seminar-08",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/bonuses/08.md",tags:[],version:"current",lastUpdatedAt:1704558496,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{id:"seminar-08",title:"8th seminar",description:"Manipulating with files only char-by-char and a magic tree.\n"},sidebar:"autogeneratedBar",previous:{title:"5th and 6th seminar",permalink:"/c/bonuses/seminar-05-06"},next:{title:"10th seminar",permalink:"/c/bonuses/seminar-10"}},a={},l=[{value:"Introduction",id:"introduction",level:2},{value:"Warning",id:"warning",level:2},{value:"Testing",id:"testing",level:2},{value:"Task no. 1: Counting (0.75 K\u20a1)",id:"task-no-1-counting-075-k",level:2},{value:"Requirements",id:"requirements",level:3},{value:"Bonus part (0.75 K\u20a1)",id:"bonus-part-075-k",level:3},{value:"Task no. 2: Weird trees (1 K\u20a1)",id:"task-no-2-weird-trees-1-k",level:2},{value:"Submitting",id:"submitting",level:2}];function d(e){const n={a:"a",blockquote:"blockquote",code:"code",em:"em",h1:"h1",h2:"h2",h3:"h3",hr:"hr",img:"img",li:"li",ol:"ol",p:"p",pre:"pre",strong:"strong",ul:"ul",...(0,s.a)(),...e.components};return(0,i.jsxs)(i.Fragment,{children:[(0,i.jsx)(n.h1,{id:"8th-seminar-bonus-assignment",children:"8th seminar bonus assignment"}),"\n",(0,i.jsx)(n.p,{children:(0,i.jsx)(n.a,{href:"pathname:///files/c/bonuses/08.tar.gz",children:"Source"})}),"\n",(0,i.jsx)(n.h2,{id:"introduction",children:"Introduction"}),"\n",(0,i.jsx)(n.p,{children:"In this bonus you can implement two tasks, one of them has a bonus part with generic\nsolution."}),"\n",(0,i.jsx)(n.p,{children:"One is focused on counting ananas or in case of generic version any substring in\nthe file, but with a restriction on the function you use."}),"\n",(0,i.jsx)(n.p,{children:"Other one has a more algorithmic spirit."}),"\n",(0,i.jsx)(n.p,{children:"For this bonus you can get at maximum 2.5 K\u20a1."}),"\n",(0,i.jsx)(n.h2,{id:"warning",children:"Warning"}),"\n",(0,i.jsxs)(n.p,{children:[(0,i.jsx)(n.strong,{children:"DO NOT COMMIT test data"})," to your own git repository, since the tests include\nfiles that exceed 10MB by themselves. Even if they are on separate branch, they\ntake up the space."]}),"\n",(0,i.jsx)(n.h2,{id:"testing",children:"Testing"}),"\n",(0,i.jsxs)(n.p,{children:["For testing you are provided with python script (requires ",(0,i.jsx)(n.code,{children:"click"})," to be installed:\n",(0,i.jsx)(n.code,{children:"pip3 install --user click"}),") and ",(0,i.jsx)(n.code,{children:"Makefile"})," that provides following targets:"]}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"check-counting"})," - runs the ",(0,i.jsx)(n.code,{children:"counting"})," tests"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"check-counting-bonus"})," - runs the ",(0,i.jsx)(n.code,{children:"counting"})," tests with bonus implemented"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"check"})," - runs both ",(0,i.jsx)(n.code,{children:"counting"})," and ",(0,i.jsx)(n.code,{children:"counting-bonus"})," tests"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"clean"})," - removes output files from the test runs"]}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"task-no-1-counting-075-k",children:"Task no. 1: Counting (0.75 K\u20a1)"}),"\n",(0,i.jsx)(n.p,{children:"Your first task is to make smallish program that counts occurences of specific\n(or given) word from file and writes the number to other file."}),"\n",(0,i.jsx)(n.p,{children:"Usage of the program is:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{children:"Usage: ./counting [string-to-be-counted]\n"})}),"\n",(0,i.jsx)(n.p,{children:"Arguments that are passed to the program represent:"}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:""})," - path to the file where we count the words"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:""})," - path to the file where we output the count"]}),"\n",(0,i.jsxs)(n.li,{children:["(optional argument) ",(0,i.jsx)(n.code,{children:"[string-to-be-counted]"})," - in case you implement bonus,\notherwise we default to word ",(0,i.jsx)(n.code,{children:"ananas"})," ;)"]}),"\n"]}),"\n",(0,i.jsx)(n.p,{children:"In skeleton you are given 3 empty, but documented, functions to implement."}),"\n",(0,i.jsxs)(n.ol,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"count_anything"})," - function accepts input file and substring to be counted in\nthe file, returns the count."]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"count_ananas"})," - same as ",(0,i.jsx)(n.code,{children:"count_anything"}),", but specialized for ananases, the\ndefault implementation from the skeleton expects you to implement ",(0,i.jsx)(n.code,{children:"count_anything"}),"\nand therefore it just calls the other function."]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"write_number"})," - function that writes the number to the file, why would you\nneed the function is explained later :)"]}),"\n"]}),"\n",(0,i.jsx)(n.h3,{id:"requirements",children:"Requirements"}),"\n",(0,i.jsxs)(n.p,{children:["For manipulation with the files you are only allowed to use ",(0,i.jsx)(n.code,{children:"fopen"}),", ",(0,i.jsx)(n.code,{children:"fclose"}),",\n",(0,i.jsx)(n.code,{children:"fgetc"})," and ",(0,i.jsx)(n.code,{children:"fputc"}),". Functions like ",(0,i.jsx)(n.code,{children:"fprintf"})," (except for ",(0,i.jsx)(n.code,{children:"stderr"})," or logging) and\n",(0,i.jsx)(n.code,{children:"fscanf"})," are ",(0,i.jsx)(n.strong,{children:"forbidden"}),"."]}),"\n",(0,i.jsx)(n.p,{children:"In case you struggle and want to use one of those functions, the solution will be\npenalized by 50% of points."}),"\n",(0,i.jsx)(n.h3,{id:"bonus-part-075-k",children:"Bonus part (0.75 K\u20a1)"}),"\n",(0,i.jsxs)(n.p,{children:["Bonus part of this assignment is to implement ",(0,i.jsx)(n.code,{children:"count_anything"})," rather than ",(0,i.jsx)(n.code,{children:"count_ananas"}),"."]}),"\n",(0,i.jsxs)(n.blockquote,{children:["\n",(0,i.jsx)(n.p,{children:"Smaller hint: This task does not need dynamic allocation :) You just need one\ngood helper function and the right idea ;)"}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"task-no-2-weird-trees-1-k",children:"Task no. 2: Weird trees (1 K\u20a1)"}),"\n",(0,i.jsxs)(n.p,{children:["In this task we are crossing our paths with ",(0,i.jsx)(n.em,{children:"algorithms and data structures"}),".\nYour task is to write a program that constructs tree from the file that is given\nas an argument and pretty-prints it."]}),"\n",(0,i.jsxs)(n.p,{children:["Input file consists of lines, that include ",(0,i.jsx)(n.code,{children:"key"})," and ",(0,i.jsx)(n.code,{children:"rank"})," in form ",(0,i.jsx)(n.code,{children:"key;rank"}),"\nor ",(0,i.jsx)(n.code,{children:"nil"}),". Why would we have ",(0,i.jsx)(n.code,{children:"nil"})," in a file? The file represents pre-order iteration\nthrough the tree. Leaves never have rank different than 0, so you can safely assume\n2 non-existing ",(0,i.jsx)(n.code,{children:"nil"}),"s in the input after you read such node ;)"]}),"\n",(0,i.jsxs)("table",{children:[(0,i.jsxs)("tr",{children:[(0,i.jsx)("th",{children:"Example input file"}),(0,i.jsx)("th",{children:"Tree it represents"})]}),(0,i.jsxs)("tr",{children:[(0,i.jsx)("td",{children:(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{children:"8;4\n5;3\n3;2\n2;1\n1;0\nnil\n4;0\n7;1\n6;0\nnil\n11;2\n10;1\n9;0\nnil\n12;0\n"})})}),(0,i.jsx)("td",{children:(0,i.jsx)(n.p,{children:(0,i.jsx)(n.img,{alt:"tree",src:t(30073).Z+"",width:"633",height:"684"})})})]})]}),"\n",(0,i.jsxs)(n.p,{children:["In this task you are only provided with different trees in the ",(0,i.jsx)(n.code,{children:"test-trees"})," directory.\nImplementation and format of the pretty-print is totally up to you. :)"]}),"\n",(0,i.jsx)(n.p,{children:"Example of mine for the tree above:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{children:"8 (rank = 4)\n+-- 5 (rank = 3)\n| +-- 3 (rank = 2)\n| | +-- 2 (rank = 1)\n| | | +-- 1 (rank = 0)\n| | +-- 4 (rank = 0)\n| +-- 7 (rank = 1)\n| +-- 6 (rank = 0)\n+-- 11 (rank = 2)\n +-- 10 (rank = 1)\n | +-- 9 (rank = 0)\n +-- 12 (rank = 0)\n"})}),"\n",(0,i.jsxs)(n.blockquote,{children:["\n",(0,i.jsx)(n.p,{children:"Can you find out what are those trees? :)"}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"submitting",children:"Submitting"}),"\n",(0,i.jsx)(n.p,{children:"In case you have any questions, feel free to reach out to me."}),"\n",(0,i.jsx)(n.hr,{})]})}function h(e={}){const{wrapper:n}={...(0,s.a)(),...e.components};return n?(0,i.jsx)(n,{...e,children:(0,i.jsx)(d,{...e})}):d(e)}},30073:(e,n,t)=>{t.d(n,{Z:()=>i});const i=t.p+"assets/images/tree-c9e37f87f9095c00fad33ea034485ce6.png"},11151:(e,n,t)=>{t.d(n,{Z:()=>c,a:()=>o});var i=t(67294);const s={},r=i.createContext(s);function o(e){const n=i.useContext(r);return i.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function c(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:o(e.components),i.createElement(r.Provider,{value:n},e.children)}}}]); \ No newline at end of file +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[5634],{58396:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>a,contentTitle:()=>o,default:()=>h,frontMatter:()=>r,metadata:()=>c,toc:()=>l});var i=t(85893),s=t(11151);const r={id:"seminar-08",title:"8th seminar",description:"Manipulating with files only char-by-char and a magic tree.\n"},o="8th seminar bonus assignment",c={id:"bonuses/seminar-08",title:"8th seminar",description:"Manipulating with files only char-by-char and a magic tree.\n",source:"@site/c/bonuses/08.md",sourceDirName:"bonuses",slug:"/bonuses/seminar-08",permalink:"/c/bonuses/seminar-08",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/bonuses/08.md",tags:[],version:"current",lastUpdatedAt:1704571953,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{id:"seminar-08",title:"8th seminar",description:"Manipulating with files only char-by-char and a magic tree.\n"},sidebar:"autogeneratedBar",previous:{title:"5th and 6th seminar",permalink:"/c/bonuses/seminar-05-06"},next:{title:"10th seminar",permalink:"/c/bonuses/seminar-10"}},a={},l=[{value:"Introduction",id:"introduction",level:2},{value:"Warning",id:"warning",level:2},{value:"Testing",id:"testing",level:2},{value:"Task no. 1: Counting (0.75 K\u20a1)",id:"task-no-1-counting-075-k",level:2},{value:"Requirements",id:"requirements",level:3},{value:"Bonus part (0.75 K\u20a1)",id:"bonus-part-075-k",level:3},{value:"Task no. 2: Weird trees (1 K\u20a1)",id:"task-no-2-weird-trees-1-k",level:2},{value:"Submitting",id:"submitting",level:2}];function d(e){const n={a:"a",blockquote:"blockquote",code:"code",em:"em",h1:"h1",h2:"h2",h3:"h3",hr:"hr",img:"img",li:"li",ol:"ol",p:"p",pre:"pre",strong:"strong",ul:"ul",...(0,s.a)(),...e.components};return(0,i.jsxs)(i.Fragment,{children:[(0,i.jsx)(n.h1,{id:"8th-seminar-bonus-assignment",children:"8th seminar bonus assignment"}),"\n",(0,i.jsx)(n.p,{children:(0,i.jsx)(n.a,{href:"pathname:///files/c/bonuses/08.tar.gz",children:"Source"})}),"\n",(0,i.jsx)(n.h2,{id:"introduction",children:"Introduction"}),"\n",(0,i.jsx)(n.p,{children:"In this bonus you can implement two tasks, one of them has a bonus part with generic\nsolution."}),"\n",(0,i.jsx)(n.p,{children:"One is focused on counting ananas or in case of generic version any substring in\nthe file, but with a restriction on the function you use."}),"\n",(0,i.jsx)(n.p,{children:"Other one has a more algorithmic spirit."}),"\n",(0,i.jsx)(n.p,{children:"For this bonus you can get at maximum 2.5 K\u20a1."}),"\n",(0,i.jsx)(n.h2,{id:"warning",children:"Warning"}),"\n",(0,i.jsxs)(n.p,{children:[(0,i.jsx)(n.strong,{children:"DO NOT COMMIT test data"})," to your own git repository, since the tests include\nfiles that exceed 10MB by themselves. Even if they are on separate branch, they\ntake up the space."]}),"\n",(0,i.jsx)(n.h2,{id:"testing",children:"Testing"}),"\n",(0,i.jsxs)(n.p,{children:["For testing you are provided with python script (requires ",(0,i.jsx)(n.code,{children:"click"})," to be installed:\n",(0,i.jsx)(n.code,{children:"pip3 install --user click"}),") and ",(0,i.jsx)(n.code,{children:"Makefile"})," that provides following targets:"]}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"check-counting"})," - runs the ",(0,i.jsx)(n.code,{children:"counting"})," tests"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"check-counting-bonus"})," - runs the ",(0,i.jsx)(n.code,{children:"counting"})," tests with bonus implemented"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"check"})," - runs both ",(0,i.jsx)(n.code,{children:"counting"})," and ",(0,i.jsx)(n.code,{children:"counting-bonus"})," tests"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"clean"})," - removes output files from the test runs"]}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"task-no-1-counting-075-k",children:"Task no. 1: Counting (0.75 K\u20a1)"}),"\n",(0,i.jsx)(n.p,{children:"Your first task is to make smallish program that counts occurences of specific\n(or given) word from file and writes the number to other file."}),"\n",(0,i.jsx)(n.p,{children:"Usage of the program is:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{children:"Usage: ./counting [string-to-be-counted]\n"})}),"\n",(0,i.jsx)(n.p,{children:"Arguments that are passed to the program represent:"}),"\n",(0,i.jsxs)(n.ul,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:""})," - path to the file where we count the words"]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:""})," - path to the file where we output the count"]}),"\n",(0,i.jsxs)(n.li,{children:["(optional argument) ",(0,i.jsx)(n.code,{children:"[string-to-be-counted]"})," - in case you implement bonus,\notherwise we default to word ",(0,i.jsx)(n.code,{children:"ananas"})," ;)"]}),"\n"]}),"\n",(0,i.jsx)(n.p,{children:"In skeleton you are given 3 empty, but documented, functions to implement."}),"\n",(0,i.jsxs)(n.ol,{children:["\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"count_anything"})," - function accepts input file and substring to be counted in\nthe file, returns the count."]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"count_ananas"})," - same as ",(0,i.jsx)(n.code,{children:"count_anything"}),", but specialized for ananases, the\ndefault implementation from the skeleton expects you to implement ",(0,i.jsx)(n.code,{children:"count_anything"}),"\nand therefore it just calls the other function."]}),"\n",(0,i.jsxs)(n.li,{children:[(0,i.jsx)(n.code,{children:"write_number"})," - function that writes the number to the file, why would you\nneed the function is explained later :)"]}),"\n"]}),"\n",(0,i.jsx)(n.h3,{id:"requirements",children:"Requirements"}),"\n",(0,i.jsxs)(n.p,{children:["For manipulation with the files you are only allowed to use ",(0,i.jsx)(n.code,{children:"fopen"}),", ",(0,i.jsx)(n.code,{children:"fclose"}),",\n",(0,i.jsx)(n.code,{children:"fgetc"})," and ",(0,i.jsx)(n.code,{children:"fputc"}),". Functions like ",(0,i.jsx)(n.code,{children:"fprintf"})," (except for ",(0,i.jsx)(n.code,{children:"stderr"})," or logging) and\n",(0,i.jsx)(n.code,{children:"fscanf"})," are ",(0,i.jsx)(n.strong,{children:"forbidden"}),"."]}),"\n",(0,i.jsx)(n.p,{children:"In case you struggle and want to use one of those functions, the solution will be\npenalized by 50% of points."}),"\n",(0,i.jsx)(n.h3,{id:"bonus-part-075-k",children:"Bonus part (0.75 K\u20a1)"}),"\n",(0,i.jsxs)(n.p,{children:["Bonus part of this assignment is to implement ",(0,i.jsx)(n.code,{children:"count_anything"})," rather than ",(0,i.jsx)(n.code,{children:"count_ananas"}),"."]}),"\n",(0,i.jsxs)(n.blockquote,{children:["\n",(0,i.jsx)(n.p,{children:"Smaller hint: This task does not need dynamic allocation :) You just need one\ngood helper function and the right idea ;)"}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"task-no-2-weird-trees-1-k",children:"Task no. 2: Weird trees (1 K\u20a1)"}),"\n",(0,i.jsxs)(n.p,{children:["In this task we are crossing our paths with ",(0,i.jsx)(n.em,{children:"algorithms and data structures"}),".\nYour task is to write a program that constructs tree from the file that is given\nas an argument and pretty-prints it."]}),"\n",(0,i.jsxs)(n.p,{children:["Input file consists of lines, that include ",(0,i.jsx)(n.code,{children:"key"})," and ",(0,i.jsx)(n.code,{children:"rank"})," in form ",(0,i.jsx)(n.code,{children:"key;rank"}),"\nor ",(0,i.jsx)(n.code,{children:"nil"}),". Why would we have ",(0,i.jsx)(n.code,{children:"nil"})," in a file? The file represents pre-order iteration\nthrough the tree. Leaves never have rank different than 0, so you can safely assume\n2 non-existing ",(0,i.jsx)(n.code,{children:"nil"}),"s in the input after you read such node ;)"]}),"\n",(0,i.jsxs)("table",{children:[(0,i.jsxs)("tr",{children:[(0,i.jsx)("th",{children:"Example input file"}),(0,i.jsx)("th",{children:"Tree it represents"})]}),(0,i.jsxs)("tr",{children:[(0,i.jsx)("td",{children:(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{children:"8;4\n5;3\n3;2\n2;1\n1;0\nnil\n4;0\n7;1\n6;0\nnil\n11;2\n10;1\n9;0\nnil\n12;0\n"})})}),(0,i.jsx)("td",{children:(0,i.jsx)(n.p,{children:(0,i.jsx)(n.img,{alt:"tree",src:t(30073).Z+"",width:"633",height:"684"})})})]})]}),"\n",(0,i.jsxs)(n.p,{children:["In this task you are only provided with different trees in the ",(0,i.jsx)(n.code,{children:"test-trees"})," directory.\nImplementation and format of the pretty-print is totally up to you. :)"]}),"\n",(0,i.jsx)(n.p,{children:"Example of mine for the tree above:"}),"\n",(0,i.jsx)(n.pre,{children:(0,i.jsx)(n.code,{children:"8 (rank = 4)\n+-- 5 (rank = 3)\n| +-- 3 (rank = 2)\n| | +-- 2 (rank = 1)\n| | | +-- 1 (rank = 0)\n| | +-- 4 (rank = 0)\n| +-- 7 (rank = 1)\n| +-- 6 (rank = 0)\n+-- 11 (rank = 2)\n +-- 10 (rank = 1)\n | +-- 9 (rank = 0)\n +-- 12 (rank = 0)\n"})}),"\n",(0,i.jsxs)(n.blockquote,{children:["\n",(0,i.jsx)(n.p,{children:"Can you find out what are those trees? :)"}),"\n"]}),"\n",(0,i.jsx)(n.h2,{id:"submitting",children:"Submitting"}),"\n",(0,i.jsx)(n.p,{children:"In case you have any questions, feel free to reach out to me."}),"\n",(0,i.jsx)(n.hr,{})]})}function h(e={}){const{wrapper:n}={...(0,s.a)(),...e.components};return n?(0,i.jsx)(n,{...e,children:(0,i.jsx)(d,{...e})}):d(e)}},30073:(e,n,t)=>{t.d(n,{Z:()=>i});const i=t.p+"assets/images/tree-c9e37f87f9095c00fad33ea034485ce6.png"},11151:(e,n,t)=>{t.d(n,{Z:()=>c,a:()=>o});var i=t(67294);const s={},r=i.createContext(s);function o(e){const n=i.useContext(r);return i.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function c(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:o(e.components),i.createElement(r.Provider,{value:n},e.children)}}}]); 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\ No newline at end of file +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[9731],{42286:(t,e,n)=>{n.r(e),n.d(e,{assets:()=>s,contentTitle:()=>c,default:()=>d,frontMatter:()=>i,metadata:()=>a,toc:()=>p});var o=n(85893),r=n(11151);const i={id:"cpp-intro",title:"Introduction",slug:"/"},c=void 0,a={id:"cpp-intro",title:"Introduction",description:"",source:"@site/cpp/00-intro.md",sourceDirName:".",slug:"/",permalink:"/cpp/",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/cpp/00-intro.md",tags:[],version:"current",lastUpdatedAt:1704571953,formattedLastUpdatedAt:"Jan 6, 2024",sidebarPosition:0,frontMatter:{id:"cpp-intro",title:"Introduction",slug:"/"},sidebar:"autogeneratedBar",next:{title:"Exceptions and RAII",permalink:"/cpp/category/exceptions-and-raii"}},s={},p=[];function u(t){return(0,o.jsx)(o.Fragment,{})}function d(t={}){const{wrapper:e}={...(0,r.a)(),...t.components};return e?(0,o.jsx)(e,{...t,children:(0,o.jsx)(u,{...t})}):u()}},11151:(t,e,n)=>{n.d(e,{Z:()=>a,a:()=>c});var o=n(67294);const r={},i=o.createContext(r);function c(t){const e=o.useContext(i);return o.useMemo((function(){return"function"==typeof t?t(e):{...e,...t}}),[e,t])}function a(t){let e;return e=t.disableParentContext?"function"==typeof t.components?t.components(r):t.components||r:c(t.components),o.createElement(i.Provider,{value:e},t.children)}}}]); 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\ No newline at end of file +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[3803],{86427:(t,e,n)=>{n.r(e),n.d(e,{assets:()=>a,contentTitle:()=>s,default:()=>l,frontMatter:()=>i,metadata:()=>c,toc:()=>u});var o=n(85893),r=n(11151);const i={id:"c-intro",title:"Introduction",slug:"/"},s=void 0,c={id:"c-intro",title:"Introduction",description:"",source:"@site/c/00-intro.md",sourceDirName:".",slug:"/",permalink:"/c/",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/00-intro.md",tags:[],version:"current",lastUpdatedAt:1704571953,formattedLastUpdatedAt:"Jan 6, 2024",sidebarPosition:0,frontMatter:{id:"c-intro",title:"Introduction",slug:"/"},sidebar:"autogeneratedBar",next:{title:"Bonuses",permalink:"/c/category/bonuses"}},a={},u=[];function d(t){return(0,o.jsx)(o.Fragment,{})}function l(t={}){const{wrapper:e}={...(0,r.a)(),...t.components};return e?(0,o.jsx)(e,{...t,children:(0,o.jsx)(d,{...t})}):d()}},11151:(t,e,n)=>{n.d(e,{Z:()=>c,a:()=>s});var o=n(67294);const r={},i=o.createContext(r);function s(t){const e=o.useContext(i);return o.useMemo((function(){return"function"==typeof t?t(e):{...e,...t}}),[e,t])}function c(t){let e;return e=t.disableParentContext?"function"==typeof t.components?t.components(r):t.components||r:s(t.components),o.createElement(i.Provider,{value:e},t.children)}}}]); \ No newline at end of file diff --git a/assets/js/84d1e0d8.f2e0ffd7.js b/assets/js/84d1e0d8.985692bf.js similarity index 97% rename from assets/js/84d1e0d8.f2e0ffd7.js rename to assets/js/84d1e0d8.985692bf.js index 11fb33d..1a49592 100644 --- a/assets/js/84d1e0d8.f2e0ffd7.js +++ b/assets/js/84d1e0d8.985692bf.js @@ -1 +1 @@ -"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[1885],{49713:(t,e,n)=>{n.r(e),n.d(e,{assets:()=>c,contentTitle:()=>i,default:()=>u,frontMatter:()=>r,metadata:()=>a,toc:()=>d});var o=n(85893),s=n(11151);const r={id:"algorithms-intro",title:"Introduction",slug:"/"},i=void 0,a={id:"algorithms-intro",title:"Introduction",description:"In this part you can find \u201crandom\u201d additional materials I have written over the",source:"@site/algorithms/00-intro.md",sourceDirName:".",slug:"/",permalink:"/algorithms/",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/algorithms/00-intro.md",tags:[],version:"current",lastUpdatedAt:1704558496,formattedLastUpdatedAt:"Jan 6, 2024",sidebarPosition:0,frontMatter:{id:"algorithms-intro",title:"Introduction",slug:"/"},sidebar:"autogeneratedBar",next:{title:"Algorithms and Correctness",permalink:"/algorithms/category/algorithms-and-correctness"}},c={},d=[];function l(t){const e={a:"a",em:"em",p:"p",...(0,s.a)(),...t.components};return(0,o.jsxs)(o.Fragment,{children:[(0,o.jsxs)(e.p,{children:["In this part you can find \u201crandom\u201d additional materials I have written over the\ncourse of teaching ",(0,o.jsx)(e.em,{children:"Algorithms and data structures I"}),"."]}),"\n",(0,o.jsx)(e.p,{children:"It is a various mix of stuff that may have been produced as a follow-up on some\nquestion asked at the seminar or spontanously."}),"\n",(0,o.jsxs)(e.p,{children:["If you have some ideas for posts, please do not hesitate to submit them as issues\nin the linked ",(0,o.jsx)(e.a,{href:"https://gitlab.fi.muni.cz/xfocko/kb/issues",children:"GitLab"}),"."]})]})}function u(t={}){const{wrapper:e}={...(0,s.a)(),...t.components};return e?(0,o.jsx)(e,{...t,children:(0,o.jsx)(l,{...t})}):l(t)}},11151:(t,e,n)=>{n.d(e,{Z:()=>a,a:()=>i});var o=n(67294);const s={},r=o.createContext(s);function i(t){const e=o.useContext(r);return o.useMemo((function(){return"function"==typeof t?t(e):{...e,...t}}),[e,t])}function a(t){let e;return e=t.disableParentContext?"function"==typeof t.components?t.components(s):t.components||s:i(t.components),o.createElement(r.Provider,{value:e},t.children)}}}]); \ No newline at end of file +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[1885],{49713:(t,e,n)=>{n.r(e),n.d(e,{assets:()=>c,contentTitle:()=>i,default:()=>u,frontMatter:()=>r,metadata:()=>a,toc:()=>d});var o=n(85893),s=n(11151);const r={id:"algorithms-intro",title:"Introduction",slug:"/"},i=void 0,a={id:"algorithms-intro",title:"Introduction",description:"In this part you can find \u201crandom\u201d additional materials I have written over the",source:"@site/algorithms/00-intro.md",sourceDirName:".",slug:"/",permalink:"/algorithms/",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/algorithms/00-intro.md",tags:[],version:"current",lastUpdatedAt:1704571953,formattedLastUpdatedAt:"Jan 6, 2024",sidebarPosition:0,frontMatter:{id:"algorithms-intro",title:"Introduction",slug:"/"},sidebar:"autogeneratedBar",next:{title:"Algorithms and Correctness",permalink:"/algorithms/category/algorithms-and-correctness"}},c={},d=[];function l(t){const e={a:"a",em:"em",p:"p",...(0,s.a)(),...t.components};return(0,o.jsxs)(o.Fragment,{children:[(0,o.jsxs)(e.p,{children:["In this part you can find \u201crandom\u201d additional materials I have written over the\ncourse of teaching ",(0,o.jsx)(e.em,{children:"Algorithms and data structures I"}),"."]}),"\n",(0,o.jsx)(e.p,{children:"It is a various mix of stuff that may have been produced as a follow-up on some\nquestion asked at the seminar or spontanously."}),"\n",(0,o.jsxs)(e.p,{children:["If you have some ideas for posts, please do not hesitate to submit them as issues\nin the linked ",(0,o.jsx)(e.a,{href:"https://gitlab.fi.muni.cz/xfocko/kb/issues",children:"GitLab"}),"."]})]})}function u(t={}){const{wrapper:e}={...(0,s.a)(),...t.components};return e?(0,o.jsx)(e,{...t,children:(0,o.jsx)(l,{...t})}):l(t)}},11151:(t,e,n)=>{n.d(e,{Z:()=>a,a:()=>i});var o=n(67294);const s={},r=o.createContext(s);function i(t){const e=o.useContext(r);return o.useMemo((function(){return"function"==typeof t?t(e):{...e,...t}}),[e,t])}function a(t){let e;return e=t.disableParentContext?"function"==typeof t.components?t.components(s):t.components||s:i(t.components),o.createElement(r.Provider,{value:e},t.children)}}}]); \ No newline at end of file diff --git a/assets/js/b1288602.fa264713.js b/assets/js/b1288602.cc4934c1.js similarity index 99% rename from assets/js/b1288602.fa264713.js rename to assets/js/b1288602.cc4934c1.js index 249fede..2f2d02c 100644 --- a/assets/js/b1288602.fa264713.js +++ b/assets/js/b1288602.cc4934c1.js @@ -1 +1 @@ -"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[59],{51456:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>c,contentTitle:()=>i,default:()=>d,frontMatter:()=>o,metadata:()=>a,toc:()=>h});var r=t(85893),s=t(11151);const o={title:"Submitting merge requests"},i="Submitting merge requests for review",a={id:"mr",title:"Submitting merge requests",description:"This tutorial aims to show you how to follow basic git workflow and submit changes",source:"@site/c/mr.md",sourceDirName:".",slug:"/mr",permalink:"/c/mr",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/mr.md",tags:[],version:"current",lastUpdatedAt:1704558496,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{title:"Submitting merge requests"},sidebar:"autogeneratedBar",previous:{title:"Practice exam C",permalink:"/c/pexam/cams"}},c={},h=[{value:"Tutorial",id:"tutorial",level:2},{value:"Step #1 - Starting from the clean repository",id:"step-1---starting-from-the-clean-repository",level:3},{value:"Step #2 - Create new branch",id:"step-2---create-new-branch",level:3},{value:"Step #3 - Do the assignment",id:"step-3---do-the-assignment",level:3},{value:"Step #4 - Commit and upload the changes to GitLab",id:"step-4---commit-and-upload-the-changes-to-gitlab",level:3},{value:"Step #5 - Creating a merge request manually",id:"step-5---creating-a-merge-request-manually",level:3},{value:"Step #6 - Set assignees",id:"step-6---set-assignees",level:3},{value:"Step #7 - Return to default branch",id:"step-7---return-to-default-branch",level:3}];function l(e){const n={a:"a",blockquote:"blockquote",code:"code",em:"em",h1:"h1",h2:"h2",h3:"h3",hr:"hr",li:"li",ol:"ol",p:"p",pre:"pre",strong:"strong",...(0,s.a)(),...e.components};return(0,r.jsxs)(r.Fragment,{children:[(0,r.jsx)(n.h1,{id:"submitting-merge-requests-for-review",children:"Submitting merge requests for review"}),"\n",(0,r.jsxs)(n.p,{children:["This tutorial aims to show you how to follow basic git workflow and submit changes\nthrough ",(0,r.jsx)(n.em,{children:"Merge Requests"})," for review."]}),"\n",(0,r.jsxs)(n.p,{children:["The rudimentary idea behind aims for changes to be present on a separate branch\nthat is supposedly ",(0,r.jsx)(n.em,{children:"merged"})," into the default branch. Till then changes can be reviewed\non ",(0,r.jsx)(n.em,{children:"Merge Request"})," and additional changes may be made based on the reviews. Once\nthe changes satisfy requirements, the merge request is merged."]}),"\n",(0,r.jsx)(n.h2,{id:"tutorial",children:"Tutorial"}),"\n",(0,r.jsxs)(n.blockquote,{children:["\n",(0,r.jsxs)(n.p,{children:["Use this tutorial only for bonus assignments ",(0,r.jsx)(n.strong,{children:"made by your tutors"})," or in case\nyou need to make up for the absence."]}),"\n"]}),"\n",(0,r.jsx)(n.h3,{id:"step-1---starting-from-the-clean-repository",children:"Step #1 - Starting from the clean repository"}),"\n",(0,r.jsxs)(n.p,{children:["In your repository (either locally or on aisa) type ",(0,r.jsx)(n.code,{children:"git status"})," and check if your\nrepository is clean and you are present on the main branch (",(0,r.jsx)(n.code,{children:"master"}),", ",(0,r.jsx)(n.code,{children:"main"})," or\n",(0,r.jsx)(n.code,{children:"trunk"}),"). If you do not know what your default branch is, it is probably ",(0,r.jsx)(n.code,{children:"master"}),"\nand you should not be on any other branch."]}),"\n",(0,r.jsx)(n.p,{children:"Output of the command should look like this:"}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git status\nOn branch master # Or main or trunk.\nYour branch is up to date with 'origin/master'.\n\nnothing to commit, working tree clean\n"})}),"\n",(0,r.jsxs)(n.blockquote,{children:["\n",(0,r.jsxs)(n.p,{children:["In case you are on different branch or there are uncommitted changes,\n",(0,r.jsx)(n.strong,{children:"do not continue!!!"})," Clean your repository (commit the changes or discard\nthem), before you continue."]}),"\n"]}),"\n",(0,r.jsx)(n.h3,{id:"step-2---create-new-branch",children:"Step #2 - Create new branch"}),"\n",(0,r.jsx)(n.p,{children:"In your repository write command:"}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git checkout -b BRANCH\nSwitched to a new branch 'BRANCH'\n"})}),"\n",(0,r.jsxs)(n.p,{children:["Instead of ",(0,r.jsx)(n.code,{children:"BRANCH"})," use some reasonable name for the branch. For example if you\nare working on the seminar from 3rd week, name the branch ",(0,r.jsx)(n.code,{children:"seminar-03"}),"."]}),"\n",(0,r.jsx)(n.h3,{id:"step-3---do-the-assignment",children:"Step #3 - Do the assignment"}),"\n",(0,r.jsx)(n.p,{children:"Download the skeleton for the seminar assignment, extract and program. For example\nif you are working on 3rd seminar, you can do so by:"}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ wget https://www.fi.muni.cz/pb071/seminars/seminar-03/pb071-seminar-03.zip\naisa$ unzip pb071-seminar-03.zip\n# Now you should have directory 'seminar-03'.\naisa$ rm pb071-seminar-03.zip\naisa$ cd seminar-03\n# You can work on the assignment.\n"})}),"\n",(0,r.jsx)(n.h3,{id:"step-4---commit-and-upload-the-changes-to-gitlab",children:"Step #4 - Commit and upload the changes to GitLab"}),"\n",(0,r.jsxs)(n.p,{children:["The same way you ",(0,r.jsx)(n.em,{children:"add"})," and ",(0,r.jsx)(n.em,{children:"commit"})," files for the homework assignments, you do for\nthe seminar."]}),"\n",(0,r.jsxs)(n.p,{children:["Now you can upload the changes to GitLab. ",(0,r.jsx)(n.code,{children:"git push"})," is not enough, since repository\non GitLab does not know your new branch. You can solve this by adding arguments:"]}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git push origin BRANCH\n...\nremote: To create a merge request for BRANCH, visit:\nremote: https://gitlab.fi.muni.cz/login/pb071/merge_requests/new?merge_request%5Bsource_branch%5D=BRANCH\n...\n"})}),"\n",(0,r.jsx)(n.p,{children:"In the output you should have a link for creating a merge request. If you see this\nlink, open it and skip next step."}),"\n",(0,r.jsx)(n.h3,{id:"step-5---creating-a-merge-request-manually",children:"Step #5 - Creating a merge request manually"}),"\n",(0,r.jsxs)(n.ol,{children:["\n",(0,r.jsx)(n.li,{children:"Open your repository on GitLab."}),"\n",(0,r.jsxs)(n.li,{children:["On the left panel click on ",(0,r.jsx)(n.em,{children:"Merge Requests"}),"."]}),"\n",(0,r.jsxs)(n.li,{children:["Click on ",(0,r.jsx)(n.em,{children:"New Merge Request"}),"."]}),"\n",(0,r.jsxs)(n.li,{children:["In ",(0,r.jsx)(n.em,{children:"Source branch"})," select ",(0,r.jsx)(n.code,{children:"login/pb071"})," and ",(0,r.jsx)(n.code,{children:"BRANCH"}),", which you created."]}),"\n",(0,r.jsxs)(n.li,{children:["In ",(0,r.jsx)(n.em,{children:"Target branch"})," select ",(0,r.jsx)(n.code,{children:"login/pb071"})," and your default branch you have seen\nin the output of the first command. (most likely ",(0,r.jsx)(n.code,{children:"master"}),")"]}),"\n",(0,r.jsxs)(n.li,{children:["Click on ",(0,r.jsx)(n.em,{children:"Compare branches and continue"}),"."]}),"\n"]}),"\n",(0,r.jsx)(n.h3,{id:"step-6---set-assignees",children:"Step #6 - Set assignees"}),"\n",(0,r.jsxs)(n.p,{children:["On the page that is opened, please check at the top that you are creating merge\nrequest ",(0,r.jsx)(n.strong,{children:"from"})," your new branch ",(0,r.jsx)(n.strong,{children:"to"})," your default branch (one of ",(0,r.jsx)(n.code,{children:"master"}),", ",(0,r.jsx)(n.code,{children:"main"}),"\nor ",(0,r.jsx)(n.code,{children:"trunk"}),")."]}),"\n",(0,r.jsxs)(n.p,{children:["Then in the field ",(0,r.jsx)(n.em,{children:"Assignees"})," set your tutors based on the seminar group. You can\nuse login for a quick look up."]}),"\n",(0,r.jsxs)(n.p,{children:["In the end click on ",(0,r.jsx)(n.em,{children:"Submit merge request"}),"."]}),"\n",(0,r.jsx)(n.h3,{id:"step-7---return-to-default-branch",children:"Step #7 - Return to default branch"}),"\n",(0,r.jsx)(n.p,{children:"Homework assignments can be submitted only from branches specified in the rules\nfor the course. Because of that, before you do anything else, you should switch\nback to your default branch."}),"\n",(0,r.jsxs)(n.p,{children:["First of all, same as in step #1, check that your repository is clean with ",(0,r.jsx)(n.code,{children:"git status"}),".\nFor the sake of safety, do not continue without clean repository. Then with command\n",(0,r.jsx)(n.code,{children:"git checkout BRANCH"})," switch to your default branch ",(0,r.jsx)(n.code,{children:"BRANCH"}),"."]}),"\n",(0,r.jsxs)(n.p,{children:["If you do not know which branch is your default, try ",(0,r.jsx)(n.code,{children:"git branch"})," that outputs all branches in your repository. Default branch is typically ",(0,r.jsx)(n.code,{children:"master"}),", but can\nbe ",(0,r.jsx)(n.code,{children:"main"})," or ",(0,r.jsx)(n.code,{children:"trunk"}),"."]}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git status\n# Check if repository is clean\n\n# If you know, what is your default branch, you can skip next command.\naisa$ git branch\n# Find the default branch in the list; should be one of the `master`, `main` or\n# `trunk` and you should not have more than one of those.\n# In case the list clears the terminal and you cannot see shell prompt, you can\n# press `q` to quit the pager.\n\naisa$ git checkout master\n"})}),"\n",(0,r.jsx)(n.hr,{}),"\n",(0,r.jsxs)(n.p,{children:["Adapted from: ",(0,r.jsx)(n.a,{href:"https://www.fi.muni.cz/~xlacko1/pb071/mr.html",children:"https://www.fi.muni.cz/~xlacko1/pb071/mr.html"})]})]})}function d(e={}){const{wrapper:n}={...(0,s.a)(),...e.components};return n?(0,r.jsx)(n,{...e,children:(0,r.jsx)(l,{...e})}):l(e)}},11151:(e,n,t)=>{t.d(n,{Z:()=>a,a:()=>i});var r=t(67294);const s={},o=r.createContext(s);function i(e){const n=r.useContext(o);return r.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function a(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:i(e.components),r.createElement(o.Provider,{value:n},e.children)}}}]); \ No newline at end of file +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[59],{51456:(e,n,t)=>{t.r(n),t.d(n,{assets:()=>c,contentTitle:()=>i,default:()=>d,frontMatter:()=>o,metadata:()=>a,toc:()=>h});var r=t(85893),s=t(11151);const o={title:"Submitting merge requests"},i="Submitting merge requests for review",a={id:"mr",title:"Submitting merge requests",description:"This tutorial aims to show you how to follow basic git workflow and submit changes",source:"@site/c/mr.md",sourceDirName:".",slug:"/mr",permalink:"/c/mr",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/mr.md",tags:[],version:"current",lastUpdatedAt:1704571953,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{title:"Submitting merge requests"},sidebar:"autogeneratedBar",previous:{title:"Practice exam C",permalink:"/c/pexam/cams"}},c={},h=[{value:"Tutorial",id:"tutorial",level:2},{value:"Step #1 - Starting from the clean repository",id:"step-1---starting-from-the-clean-repository",level:3},{value:"Step #2 - Create new branch",id:"step-2---create-new-branch",level:3},{value:"Step #3 - Do the assignment",id:"step-3---do-the-assignment",level:3},{value:"Step #4 - Commit and upload the changes to GitLab",id:"step-4---commit-and-upload-the-changes-to-gitlab",level:3},{value:"Step #5 - Creating a merge request manually",id:"step-5---creating-a-merge-request-manually",level:3},{value:"Step #6 - Set assignees",id:"step-6---set-assignees",level:3},{value:"Step #7 - Return to default branch",id:"step-7---return-to-default-branch",level:3}];function l(e){const n={a:"a",blockquote:"blockquote",code:"code",em:"em",h1:"h1",h2:"h2",h3:"h3",hr:"hr",li:"li",ol:"ol",p:"p",pre:"pre",strong:"strong",...(0,s.a)(),...e.components};return(0,r.jsxs)(r.Fragment,{children:[(0,r.jsx)(n.h1,{id:"submitting-merge-requests-for-review",children:"Submitting merge requests for review"}),"\n",(0,r.jsxs)(n.p,{children:["This tutorial aims to show you how to follow basic git workflow and submit changes\nthrough ",(0,r.jsx)(n.em,{children:"Merge Requests"})," for review."]}),"\n",(0,r.jsxs)(n.p,{children:["The rudimentary idea behind aims for changes to be present on a separate branch\nthat is supposedly ",(0,r.jsx)(n.em,{children:"merged"})," into the default branch. Till then changes can be reviewed\non ",(0,r.jsx)(n.em,{children:"Merge Request"})," and additional changes may be made based on the reviews. Once\nthe changes satisfy requirements, the merge request is merged."]}),"\n",(0,r.jsx)(n.h2,{id:"tutorial",children:"Tutorial"}),"\n",(0,r.jsxs)(n.blockquote,{children:["\n",(0,r.jsxs)(n.p,{children:["Use this tutorial only for bonus assignments ",(0,r.jsx)(n.strong,{children:"made by your tutors"})," or in case\nyou need to make up for the absence."]}),"\n"]}),"\n",(0,r.jsx)(n.h3,{id:"step-1---starting-from-the-clean-repository",children:"Step #1 - Starting from the clean repository"}),"\n",(0,r.jsxs)(n.p,{children:["In your repository (either locally or on aisa) type ",(0,r.jsx)(n.code,{children:"git status"})," and check if your\nrepository is clean and you are present on the main branch (",(0,r.jsx)(n.code,{children:"master"}),", ",(0,r.jsx)(n.code,{children:"main"})," or\n",(0,r.jsx)(n.code,{children:"trunk"}),"). If you do not know what your default branch is, it is probably ",(0,r.jsx)(n.code,{children:"master"}),"\nand you should not be on any other branch."]}),"\n",(0,r.jsx)(n.p,{children:"Output of the command should look like this:"}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git status\nOn branch master # Or main or trunk.\nYour branch is up to date with 'origin/master'.\n\nnothing to commit, working tree clean\n"})}),"\n",(0,r.jsxs)(n.blockquote,{children:["\n",(0,r.jsxs)(n.p,{children:["In case you are on different branch or there are uncommitted changes,\n",(0,r.jsx)(n.strong,{children:"do not continue!!!"})," Clean your repository (commit the changes or discard\nthem), before you continue."]}),"\n"]}),"\n",(0,r.jsx)(n.h3,{id:"step-2---create-new-branch",children:"Step #2 - Create new branch"}),"\n",(0,r.jsx)(n.p,{children:"In your repository write command:"}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git checkout -b BRANCH\nSwitched to a new branch 'BRANCH'\n"})}),"\n",(0,r.jsxs)(n.p,{children:["Instead of ",(0,r.jsx)(n.code,{children:"BRANCH"})," use some reasonable name for the branch. For example if you\nare working on the seminar from 3rd week, name the branch ",(0,r.jsx)(n.code,{children:"seminar-03"}),"."]}),"\n",(0,r.jsx)(n.h3,{id:"step-3---do-the-assignment",children:"Step #3 - Do the assignment"}),"\n",(0,r.jsx)(n.p,{children:"Download the skeleton for the seminar assignment, extract and program. For example\nif you are working on 3rd seminar, you can do so by:"}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ wget https://www.fi.muni.cz/pb071/seminars/seminar-03/pb071-seminar-03.zip\naisa$ unzip pb071-seminar-03.zip\n# Now you should have directory 'seminar-03'.\naisa$ rm pb071-seminar-03.zip\naisa$ cd seminar-03\n# You can work on the assignment.\n"})}),"\n",(0,r.jsx)(n.h3,{id:"step-4---commit-and-upload-the-changes-to-gitlab",children:"Step #4 - Commit and upload the changes to GitLab"}),"\n",(0,r.jsxs)(n.p,{children:["The same way you ",(0,r.jsx)(n.em,{children:"add"})," and ",(0,r.jsx)(n.em,{children:"commit"})," files for the homework assignments, you do for\nthe seminar."]}),"\n",(0,r.jsxs)(n.p,{children:["Now you can upload the changes to GitLab. ",(0,r.jsx)(n.code,{children:"git push"})," is not enough, since repository\non GitLab does not know your new branch. You can solve this by adding arguments:"]}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git push origin BRANCH\n...\nremote: To create a merge request for BRANCH, visit:\nremote: https://gitlab.fi.muni.cz/login/pb071/merge_requests/new?merge_request%5Bsource_branch%5D=BRANCH\n...\n"})}),"\n",(0,r.jsx)(n.p,{children:"In the output you should have a link for creating a merge request. If you see this\nlink, open it and skip next step."}),"\n",(0,r.jsx)(n.h3,{id:"step-5---creating-a-merge-request-manually",children:"Step #5 - Creating a merge request manually"}),"\n",(0,r.jsxs)(n.ol,{children:["\n",(0,r.jsx)(n.li,{children:"Open your repository on GitLab."}),"\n",(0,r.jsxs)(n.li,{children:["On the left panel click on ",(0,r.jsx)(n.em,{children:"Merge Requests"}),"."]}),"\n",(0,r.jsxs)(n.li,{children:["Click on ",(0,r.jsx)(n.em,{children:"New Merge Request"}),"."]}),"\n",(0,r.jsxs)(n.li,{children:["In ",(0,r.jsx)(n.em,{children:"Source branch"})," select ",(0,r.jsx)(n.code,{children:"login/pb071"})," and ",(0,r.jsx)(n.code,{children:"BRANCH"}),", which you created."]}),"\n",(0,r.jsxs)(n.li,{children:["In ",(0,r.jsx)(n.em,{children:"Target branch"})," select ",(0,r.jsx)(n.code,{children:"login/pb071"})," and your default branch you have seen\nin the output of the first command. (most likely ",(0,r.jsx)(n.code,{children:"master"}),")"]}),"\n",(0,r.jsxs)(n.li,{children:["Click on ",(0,r.jsx)(n.em,{children:"Compare branches and continue"}),"."]}),"\n"]}),"\n",(0,r.jsx)(n.h3,{id:"step-6---set-assignees",children:"Step #6 - Set assignees"}),"\n",(0,r.jsxs)(n.p,{children:["On the page that is opened, please check at the top that you are creating merge\nrequest ",(0,r.jsx)(n.strong,{children:"from"})," your new branch ",(0,r.jsx)(n.strong,{children:"to"})," your default branch (one of ",(0,r.jsx)(n.code,{children:"master"}),", ",(0,r.jsx)(n.code,{children:"main"}),"\nor ",(0,r.jsx)(n.code,{children:"trunk"}),")."]}),"\n",(0,r.jsxs)(n.p,{children:["Then in the field ",(0,r.jsx)(n.em,{children:"Assignees"})," set your tutors based on the seminar group. You can\nuse login for a quick look up."]}),"\n",(0,r.jsxs)(n.p,{children:["In the end click on ",(0,r.jsx)(n.em,{children:"Submit merge request"}),"."]}),"\n",(0,r.jsx)(n.h3,{id:"step-7---return-to-default-branch",children:"Step #7 - Return to default branch"}),"\n",(0,r.jsx)(n.p,{children:"Homework assignments can be submitted only from branches specified in the rules\nfor the course. Because of that, before you do anything else, you should switch\nback to your default branch."}),"\n",(0,r.jsxs)(n.p,{children:["First of all, same as in step #1, check that your repository is clean with ",(0,r.jsx)(n.code,{children:"git status"}),".\nFor the sake of safety, do not continue without clean repository. Then with command\n",(0,r.jsx)(n.code,{children:"git checkout BRANCH"})," switch to your default branch ",(0,r.jsx)(n.code,{children:"BRANCH"}),"."]}),"\n",(0,r.jsxs)(n.p,{children:["If you do not know which branch is your default, try ",(0,r.jsx)(n.code,{children:"git branch"})," that outputs all branches in your repository. Default branch is typically ",(0,r.jsx)(n.code,{children:"master"}),", but can\nbe ",(0,r.jsx)(n.code,{children:"main"})," or ",(0,r.jsx)(n.code,{children:"trunk"}),"."]}),"\n",(0,r.jsx)(n.pre,{children:(0,r.jsx)(n.code,{children:"aisa$ git status\n# Check if repository is clean\n\n# If you know, what is your default branch, you can skip next command.\naisa$ git branch\n# Find the default branch in the list; should be one of the `master`, `main` or\n# `trunk` and you should not have more than one of those.\n# In case the list clears the terminal and you cannot see shell prompt, you can\n# press `q` to quit the pager.\n\naisa$ git checkout master\n"})}),"\n",(0,r.jsx)(n.hr,{}),"\n",(0,r.jsxs)(n.p,{children:["Adapted from: ",(0,r.jsx)(n.a,{href:"https://www.fi.muni.cz/~xlacko1/pb071/mr.html",children:"https://www.fi.muni.cz/~xlacko1/pb071/mr.html"})]})]})}function d(e={}){const{wrapper:n}={...(0,s.a)(),...e.components};return n?(0,r.jsx)(n,{...e,children:(0,r.jsx)(l,{...e})}):l(e)}},11151:(e,n,t)=>{t.d(n,{Z:()=>a,a:()=>i});var r=t(67294);const s={},o=r.createContext(s);function i(e){const n=r.useContext(o);return r.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function a(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(s):e.components||s:i(e.components),r.createElement(o.Provider,{value:n},e.children)}}}]); \ No newline at end of file diff --git a/assets/js/d05e838c.c79b079a.js b/assets/js/d05e838c.ce5946c6.js similarity index 99% rename from assets/js/d05e838c.c79b079a.js rename to assets/js/d05e838c.ce5946c6.js index c2e8fd8..0a8a2eb 100644 --- a/assets/js/d05e838c.c79b079a.js +++ b/assets/js/d05e838c.ce5946c6.js @@ -1 +1 @@ -"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[6544],{63004:(e,n,r)=>{r.r(n),r.d(n,{assets:()=>d,contentTitle:()=>c,default:()=>a,frontMatter:()=>i,metadata:()=>o,toc:()=>l});var s=r(85893),t=r(11151);const i={id:"seminar-05-06",title:"5th and 6th seminar",description:"200IQ encryption.\n"},c=void 0,o={id:"bonuses/seminar-05-06",title:"5th and 6th seminar",description:"200IQ encryption.\n",source:"@site/c/bonuses/05-06.md",sourceDirName:"bonuses",slug:"/bonuses/seminar-05-06",permalink:"/c/bonuses/seminar-05-06",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/bonuses/05-06.md",tags:[],version:"current",lastUpdatedAt:1704558496,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{id:"seminar-05-06",title:"5th and 6th seminar",description:"200IQ encryption.\n"},sidebar:"autogeneratedBar",previous:{title:"4th seminar",permalink:"/c/bonuses/seminar-04"},next:{title:"8th seminar",permalink:"/c/bonuses/seminar-08"}},d={},l=[{value:"Introduction",id:"introduction",level:2},{value:"Task no. 1: Reverse (0.5 K\u20a1)",id:"task-no-1-reverse-05-k",level:3},{value:"Task no. 2: Vigen\xe8re (0.5 K\u20a1)",id:"task-no-2-vigen\xe8re-05-k",level:3},{value:"Bonus part (0.5 K\u20a1)",id:"bonus-part-05-k",level:4},{value:"Task no. 3: Bit madness (0.5 K\u20a1)",id:"task-no-3-bit-madness-05-k",level:3},{value:"Task no. 4: All combined to BMP (0.5 K\u20a1)",id:"task-no-4-all-combined-to-bmp-05-k",level:3},{value:"Submitting",id:"submitting",level:2}];function h(e){const n={a:"a",code:"code",h2:"h2",h3:"h3",h4:"h4",hr:"hr",li:"li",ol:"ol",p:"p",pre:"pre",ul:"ul",...(0,t.a)(),...e.components};return(0,s.jsxs)(s.Fragment,{children:[(0,s.jsx)(n.p,{children:"For this bonus you can get at maximum 2.5 K\u20a1."}),"\n",(0,s.jsx)(n.p,{children:(0,s.jsx)(n.a,{href:"pathname:///files/c/bonuses/05-06.tar.gz",children:"Source"})}),"\n",(0,s.jsx)(n.h2,{id:"introduction",children:"Introduction"}),"\n",(0,s.jsx)(n.p,{children:"In this bonus you will implement few functions that will be used together for\nimplementing a very special cipher."}),"\n",(0,s.jsx)(n.h3,{id:"task-no-1-reverse-05-k",children:"Task no. 1: Reverse (0.5 K\u20a1)"}),"\n",(0,s.jsxs)(n.p,{children:["Write a function ",(0,s.jsx)(n.code,{children:"char* reverse(const char* text)"})," that returns copy of the input\nstring in reversed order (also uppercase)."]}),"\n",(0,s.jsxs)(n.p,{children:["In case you are given ",(0,s.jsx)(n.code,{children:"NULL"}),", return ",(0,s.jsx)(n.code,{children:"NULL"}),"."]}),"\n",(0,s.jsx)(n.p,{children:"Example (more in tests):"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-c",children:'char* reversed = reverse("Hello world!");\n\nprintf("%s\\n", reversed);\n// "!DLROW OLLEH"\n\nif (reversed != NULL) {\n free(reversed);\n}\n'})}),"\n",(0,s.jsx)(n.h3,{id:"task-no-2-vigen\xe8re-05-k",children:"Task no. 2: Vigen\xe8re (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"Vigen\xe8re cipher is similar to the Caesar cipher, but you also have a key that is\nused for encrypting (or decrypting)."}),"\n",(0,s.jsx)(n.p,{children:"Your task is to write two functions:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"char* vigenere_encrypt(const char* key, const char* text)"})," for encrypting"]}),"\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"char* vigenere_decrypt(const char* key, const char* text)"})," for decrypting"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"In both of those you should return uppercase characters."}),"\n",(0,s.jsx)(n.p,{children:"Meaning of the parameters you are given:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"key"})," - String that represents key that is used for *crypting. It consists of\none word and can have only characters of the alphabet. Does not matter if they\nare uppercase or lowercase."]}),"\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"text"})," - String that is to be *crypted."]}),"\n"]}),"\n",(0,s.jsxs)(n.p,{children:["Function returns address of the encrypted (or decrypted) string. Or ",(0,s.jsx)(n.code,{children:"NULL"})," in case\nerror occurs."]}),"\n",(0,s.jsx)(n.p,{children:"Example:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-c",children:'char *encrypted = vigenere_encrypt("CoMPuTeR", "Hello world!");\n\nprintf("%s\\n", encrypted);\n// "JSXAI PSINR!"\n\nif (encrypted != NULL) {\n free(encrypted)\n}\n'})}),"\n",(0,s.jsx)(n.h4,{id:"bonus-part-05-k",children:"Bonus part (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"If you can utilize helper function that would do both encrypting and decrypting,\nyou can gain 0.5 K\u20a1."}),"\n",(0,s.jsxs)(n.p,{children:["Usage of ",(0,s.jsx)(n.code,{children:"true"}),"/",(0,s.jsx)(n.code,{children:"false"})," to decide path in code is prohibited. It leads to merging\nof both functions into one. Point of this part is to discover a way to do this\ngenerically in such way that there are no separate paths for one or the other. One\nfunction with no branching for both of them, parametrization is your friend :)"]}),"\n",(0,s.jsx)(n.h3,{id:"task-no-3-bit-madness-05-k",children:"Task no. 3: Bit madness (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"This is a state of the art crypto. Please do not share :)"}),"\n",(0,s.jsx)(n.p,{children:"For encrypting:"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Split the character that is to be encrypted in halves (4 and 4 bits each)."}),"\n",(0,s.jsx)(n.li,{children:"Bits in 1st half are to be split into pairs. Swap bits in those pairs."}),"\n",(0,s.jsxs)(n.li,{children:["Then use the 4 bits that you created in the 2nd step for ",(0,s.jsx)(n.code,{children:"XOR"})," with the other\n4 bits."]}),"\n"]}),"\n",(0,s.jsxs)(n.p,{children:["This simple and ingenious principle will be illustrated on the following example.\nString we want to encrypt is ",(0,s.jsx)(n.code,{children:"Hello world!"}),". We need to encrypt each letter separately,\nso we will demonstrate on letter ",(0,s.jsx)(n.code,{children:"H"}),":"]}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["Letter ",(0,s.jsx)(n.code,{children:"H"})," is represented in ASCII as ",(0,s.jsx)(n.code,{children:"72"}),"."]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"72"})," represented in binary is: ",(0,s.jsx)(n.code,{children:"01001000"}),". So first 4 bits are: ",(0,s.jsx)(n.code,{children:"0100"})," and last\n4 bits are ",(0,s.jsx)(n.code,{children:"1000"}),"."]}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["First half of bits (",(0,s.jsx)(n.code,{children:"0100"}),") consists of 2 pairs (",(0,s.jsx)(n.code,{children:"01"})," and ",(0,s.jsx)(n.code,{children:"00"}),") which we swap\n(",(0,s.jsx)(n.code,{children:"01 ~> 10"})," and ",(0,s.jsx)(n.code,{children:"00 ~> 00"}),"). That way we get ",(0,s.jsx)(n.code,{children:"1000"}),"."]}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"That half is used for xor with the other 4 bits:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:" 1000 // second half\nXOR 1000 // first half after 2nd step\n--------\n 0000\n"})}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["Now we combine both halves (first one is ",(0,s.jsx)(n.code,{children:"1000"}),", which we got from the 2nd step\nand second one is ",(0,s.jsx)(n.code,{children:"0000"}),", which we got from the 3rd step) and get ",(0,s.jsx)(n.code,{children:"10000000"}),",\nwhich is encrypted character ",(0,s.jsx)(n.code,{children:"H"})," using this method."]}),"\n"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"In case of decryption, reverse those steps."}),"\n",(0,s.jsx)(n.p,{children:"Your task is to implement functions:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"unsigned char* bit_encrypt(const char* text)"})}),"\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"char* bit_decrypt(const unsigned char* text)"})}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"Example:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-c",children:'unsigned char* encrypted = bit_encrypt("Hello world!");\n\nfor (int i = 0; i < 12;i++) {\n printf("%x ", encrypted[i]);\n //80 9c 95 95 96 11 bc 96 b9 95 9d 10\n}\n\nif (encrypted != NULL) {\n free(encrypted);\n}\n'})}),"\n",(0,s.jsx)(n.h3,{id:"task-no-4-all-combined-to-bmp-05-k",children:"Task no. 4: All combined to BMP (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"Authors of the BMP cipher are non-disclosed :)"}),"\n",(0,s.jsx)(n.p,{children:"Create pair of functions:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"unsigned char* bmp_encrypt(const char* key, const char* text)"})}),"\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"char* bmp_decrypt(const char* key, const unsigned char* text)"})}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"BMP cipher consists of following steps for encrypting:"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Reverse the input string"}),"\n",(0,s.jsx)(n.li,{children:"Use Vigenere on the string you got from step #1"}),"\n",(0,s.jsx)(n.li,{children:"Use bit madness on the string you got from step #2"}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"For decrypting, reverse the steps."}),"\n",(0,s.jsx)(n.h2,{id:"submitting",children:"Submitting"}),"\n",(0,s.jsx)(n.p,{children:"In case you have any questions, feel free to reach out to me."}),"\n",(0,s.jsx)(n.hr,{})]})}function a(e={}){const{wrapper:n}={...(0,t.a)(),...e.components};return n?(0,s.jsx)(n,{...e,children:(0,s.jsx)(h,{...e})}):h(e)}},11151:(e,n,r)=>{r.d(n,{Z:()=>o,a:()=>c});var s=r(67294);const t={},i=s.createContext(t);function c(e){const n=s.useContext(i);return s.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function o(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(t):e.components||t:c(e.components),s.createElement(i.Provider,{value:n},e.children)}}}]); \ No newline at end of file +"use strict";(self.webpackChunkfi=self.webpackChunkfi||[]).push([[6544],{63004:(e,n,r)=>{r.r(n),r.d(n,{assets:()=>d,contentTitle:()=>c,default:()=>a,frontMatter:()=>i,metadata:()=>o,toc:()=>l});var s=r(85893),t=r(11151);const i={id:"seminar-05-06",title:"5th and 6th seminar",description:"200IQ encryption.\n"},c=void 0,o={id:"bonuses/seminar-05-06",title:"5th and 6th seminar",description:"200IQ encryption.\n",source:"@site/c/bonuses/05-06.md",sourceDirName:"bonuses",slug:"/bonuses/seminar-05-06",permalink:"/c/bonuses/seminar-05-06",draft:!1,unlisted:!1,editUrl:"https://github.com/mfocko/blog/tree/main/c/bonuses/05-06.md",tags:[],version:"current",lastUpdatedAt:1704571953,formattedLastUpdatedAt:"Jan 6, 2024",frontMatter:{id:"seminar-05-06",title:"5th and 6th seminar",description:"200IQ encryption.\n"},sidebar:"autogeneratedBar",previous:{title:"4th seminar",permalink:"/c/bonuses/seminar-04"},next:{title:"8th seminar",permalink:"/c/bonuses/seminar-08"}},d={},l=[{value:"Introduction",id:"introduction",level:2},{value:"Task no. 1: Reverse (0.5 K\u20a1)",id:"task-no-1-reverse-05-k",level:3},{value:"Task no. 2: Vigen\xe8re (0.5 K\u20a1)",id:"task-no-2-vigen\xe8re-05-k",level:3},{value:"Bonus part (0.5 K\u20a1)",id:"bonus-part-05-k",level:4},{value:"Task no. 3: Bit madness (0.5 K\u20a1)",id:"task-no-3-bit-madness-05-k",level:3},{value:"Task no. 4: All combined to BMP (0.5 K\u20a1)",id:"task-no-4-all-combined-to-bmp-05-k",level:3},{value:"Submitting",id:"submitting",level:2}];function h(e){const n={a:"a",code:"code",h2:"h2",h3:"h3",h4:"h4",hr:"hr",li:"li",ol:"ol",p:"p",pre:"pre",ul:"ul",...(0,t.a)(),...e.components};return(0,s.jsxs)(s.Fragment,{children:[(0,s.jsx)(n.p,{children:"For this bonus you can get at maximum 2.5 K\u20a1."}),"\n",(0,s.jsx)(n.p,{children:(0,s.jsx)(n.a,{href:"pathname:///files/c/bonuses/05-06.tar.gz",children:"Source"})}),"\n",(0,s.jsx)(n.h2,{id:"introduction",children:"Introduction"}),"\n",(0,s.jsx)(n.p,{children:"In this bonus you will implement few functions that will be used together for\nimplementing a very special cipher."}),"\n",(0,s.jsx)(n.h3,{id:"task-no-1-reverse-05-k",children:"Task no. 1: Reverse (0.5 K\u20a1)"}),"\n",(0,s.jsxs)(n.p,{children:["Write a function ",(0,s.jsx)(n.code,{children:"char* reverse(const char* text)"})," that returns copy of the input\nstring in reversed order (also uppercase)."]}),"\n",(0,s.jsxs)(n.p,{children:["In case you are given ",(0,s.jsx)(n.code,{children:"NULL"}),", return ",(0,s.jsx)(n.code,{children:"NULL"}),"."]}),"\n",(0,s.jsx)(n.p,{children:"Example (more in tests):"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-c",children:'char* reversed = reverse("Hello world!");\n\nprintf("%s\\n", reversed);\n// "!DLROW OLLEH"\n\nif (reversed != NULL) {\n free(reversed);\n}\n'})}),"\n",(0,s.jsx)(n.h3,{id:"task-no-2-vigen\xe8re-05-k",children:"Task no. 2: Vigen\xe8re (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"Vigen\xe8re cipher is similar to the Caesar cipher, but you also have a key that is\nused for encrypting (or decrypting)."}),"\n",(0,s.jsx)(n.p,{children:"Your task is to write two functions:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"char* vigenere_encrypt(const char* key, const char* text)"})," for encrypting"]}),"\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"char* vigenere_decrypt(const char* key, const char* text)"})," for decrypting"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"In both of those you should return uppercase characters."}),"\n",(0,s.jsx)(n.p,{children:"Meaning of the parameters you are given:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"key"})," - String that represents key that is used for *crypting. It consists of\none word and can have only characters of the alphabet. Does not matter if they\nare uppercase or lowercase."]}),"\n",(0,s.jsxs)(n.li,{children:[(0,s.jsx)(n.code,{children:"text"})," - String that is to be *crypted."]}),"\n"]}),"\n",(0,s.jsxs)(n.p,{children:["Function returns address of the encrypted (or decrypted) string. Or ",(0,s.jsx)(n.code,{children:"NULL"})," in case\nerror occurs."]}),"\n",(0,s.jsx)(n.p,{children:"Example:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-c",children:'char *encrypted = vigenere_encrypt("CoMPuTeR", "Hello world!");\n\nprintf("%s\\n", encrypted);\n// "JSXAI PSINR!"\n\nif (encrypted != NULL) {\n free(encrypted)\n}\n'})}),"\n",(0,s.jsx)(n.h4,{id:"bonus-part-05-k",children:"Bonus part (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"If you can utilize helper function that would do both encrypting and decrypting,\nyou can gain 0.5 K\u20a1."}),"\n",(0,s.jsxs)(n.p,{children:["Usage of ",(0,s.jsx)(n.code,{children:"true"}),"/",(0,s.jsx)(n.code,{children:"false"})," to decide path in code is prohibited. It leads to merging\nof both functions into one. Point of this part is to discover a way to do this\ngenerically in such way that there are no separate paths for one or the other. One\nfunction with no branching for both of them, parametrization is your friend :)"]}),"\n",(0,s.jsx)(n.h3,{id:"task-no-3-bit-madness-05-k",children:"Task no. 3: Bit madness (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"This is a state of the art crypto. Please do not share :)"}),"\n",(0,s.jsx)(n.p,{children:"For encrypting:"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Split the character that is to be encrypted in halves (4 and 4 bits each)."}),"\n",(0,s.jsx)(n.li,{children:"Bits in 1st half are to be split into pairs. Swap bits in those pairs."}),"\n",(0,s.jsxs)(n.li,{children:["Then use the 4 bits that you created in the 2nd step for ",(0,s.jsx)(n.code,{children:"XOR"})," with the other\n4 bits."]}),"\n"]}),"\n",(0,s.jsxs)(n.p,{children:["This simple and ingenious principle will be illustrated on the following example.\nString we want to encrypt is ",(0,s.jsx)(n.code,{children:"Hello world!"}),". We need to encrypt each letter separately,\nso we will demonstrate on letter ",(0,s.jsx)(n.code,{children:"H"}),":"]}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["Letter ",(0,s.jsx)(n.code,{children:"H"})," is represented in ASCII as ",(0,s.jsx)(n.code,{children:"72"}),"."]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"72"})," represented in binary is: ",(0,s.jsx)(n.code,{children:"01001000"}),". So first 4 bits are: ",(0,s.jsx)(n.code,{children:"0100"})," and last\n4 bits are ",(0,s.jsx)(n.code,{children:"1000"}),"."]}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["First half of bits (",(0,s.jsx)(n.code,{children:"0100"}),") consists of 2 pairs (",(0,s.jsx)(n.code,{children:"01"})," and ",(0,s.jsx)(n.code,{children:"00"}),") which we swap\n(",(0,s.jsx)(n.code,{children:"01 ~> 10"})," and ",(0,s.jsx)(n.code,{children:"00 ~> 00"}),"). That way we get ",(0,s.jsx)(n.code,{children:"1000"}),"."]}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsx)(n.p,{children:"That half is used for xor with the other 4 bits:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{children:" 1000 // second half\nXOR 1000 // first half after 2nd step\n--------\n 0000\n"})}),"\n"]}),"\n",(0,s.jsxs)(n.li,{children:["\n",(0,s.jsxs)(n.p,{children:["Now we combine both halves (first one is ",(0,s.jsx)(n.code,{children:"1000"}),", which we got from the 2nd step\nand second one is ",(0,s.jsx)(n.code,{children:"0000"}),", which we got from the 3rd step) and get ",(0,s.jsx)(n.code,{children:"10000000"}),",\nwhich is encrypted character ",(0,s.jsx)(n.code,{children:"H"})," using this method."]}),"\n"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"In case of decryption, reverse those steps."}),"\n",(0,s.jsx)(n.p,{children:"Your task is to implement functions:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"unsigned char* bit_encrypt(const char* text)"})}),"\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"char* bit_decrypt(const unsigned char* text)"})}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"Example:"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-c",children:'unsigned char* encrypted = bit_encrypt("Hello world!");\n\nfor (int i = 0; i < 12;i++) {\n printf("%x ", encrypted[i]);\n //80 9c 95 95 96 11 bc 96 b9 95 9d 10\n}\n\nif (encrypted != NULL) {\n free(encrypted);\n}\n'})}),"\n",(0,s.jsx)(n.h3,{id:"task-no-4-all-combined-to-bmp-05-k",children:"Task no. 4: All combined to BMP (0.5 K\u20a1)"}),"\n",(0,s.jsx)(n.p,{children:"Authors of the BMP cipher are non-disclosed :)"}),"\n",(0,s.jsx)(n.p,{children:"Create pair of functions:"}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"unsigned char* bmp_encrypt(const char* key, const char* text)"})}),"\n",(0,s.jsx)(n.li,{children:(0,s.jsx)(n.code,{children:"char* bmp_decrypt(const char* key, const unsigned char* text)"})}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"BMP cipher consists of following steps for encrypting:"}),"\n",(0,s.jsxs)(n.ol,{children:["\n",(0,s.jsx)(n.li,{children:"Reverse the input string"}),"\n",(0,s.jsx)(n.li,{children:"Use Vigenere on the string you got from step #1"}),"\n",(0,s.jsx)(n.li,{children:"Use bit madness on the string you got from step #2"}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"For decrypting, reverse the steps."}),"\n",(0,s.jsx)(n.h2,{id:"submitting",children:"Submitting"}),"\n",(0,s.jsx)(n.p,{children:"In case you have any questions, feel free to reach out to me."}),"\n",(0,s.jsx)(n.hr,{})]})}function a(e={}){const{wrapper:n}={...(0,t.a)(),...e.components};return n?(0,s.jsx)(n,{...e,children:(0,s.jsx)(h,{...e})}):h(e)}},11151:(e,n,r)=>{r.d(n,{Z:()=>o,a:()=>c});var s=r(67294);const t={},i=s.createContext(t);function c(e){const n=s.useContext(i);return s.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function o(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(t):e.components||t:c(e.components),s.createElement(i.Provider,{value:n},e.children)}}}]); \ No newline at end of file diff --git a/assets/js/main.2a166133.js b/assets/js/main.034f2fcf.js similarity index 98% rename from assets/js/main.2a166133.js rename to assets/js/main.034f2fcf.js index 974fbb1..a28420c 100644 --- a/assets/js/main.2a166133.js +++ b/assets/js/main.034f2fcf.js @@ -1,2 +1,2 @@ -/*! 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r={"./prism-ada":85795,"./prism-bash":57874,"./prism-csharp":79016,"./prism-dot":60397,"./prism-haskell":81295,"./prism-java":52503,"./prism-nix":58704,"./prism-pascal":13210,"./prism-python":80366,"./prism-ruby":59385,"./prism-rust":70767};function a(e){var t=o(e);return n(t)}function o(e){if(!n.o(r,e)){var t=new Error("Cannot find module '"+e+"'");throw t.code="MODULE_NOT_FOUND",t}return r[e]}a.keys=function(){return Object.keys(r)},a.resolve=o,e.exports=a,a.id=30218},92703:(e,t,n)=>{"use strict";var r=n(50414);function a(){}function o(){}o.resetWarningCache=a,e.exports=function(){function e(e,t,n,a,o,i){if(i!==r){var s=new Error("Calling PropTypes validators directly is not supported by the `prop-types` package. Use PropTypes.checkPropTypes() to call them. Read more at http://fb.me/use-check-prop-types");throw s.name="Invariant Violation",s}}function t(){return e}e.isRequired=e;var n={array:e,bigint:e,bool:e,func:e,number:e,object:e,string:e,symbol:e,any:e,arrayOf:t,element:e,elementType:e,instanceOf:t,node:e,objectOf:t,oneOf:t,oneOfType:t,shape:t,exact:t,checkPropTypes:o,resetWarningCache:a};return n.PropTypes=n,n}},45697:(e,t,n)=>{e.exports=n(92703)()},50414:e=>{"use strict";e.exports="SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED"},64448:(e,t,n)=>{"use strict";var r=n(67294),a=n(63840);function o(e){for(var t="https://reactjs.org/docs/error-decoder.html?invariant="+e,n=1;n

Submitting​

In case you have any questions, feel free to reach out to me.

-
+
\ No newline at end of file diff --git a/c/category/bonuses/index.html b/c/category/bonuses/index.html index 559aeb1..1bf70ef 100644 --- a/c/category/bonuses/index.html +++ b/c/category/bonuses/index.html @@ -16,8 +16,8 @@ - - + +

Bonuses

Bonus assignments for Kontr Coins. diff --git a/c/category/practice-exams/index.html b/c/category/practice-exams/index.html index f43944b..6517d80 100644 --- a/c/category/practice-exams/index.html +++ b/c/category/practice-exams/index.html @@ -16,8 +16,8 @@ - - + +

Practice Exams

Practice exams for training for the final exam. diff --git a/c/index.html b/c/index.html index 7543212..daa9c0c 100644 --- a/c/index.html +++ b/c/index.html @@ -14,10 +14,10 @@ - - + + -

+
\ No newline at end of file diff --git a/c/mr/index.html b/c/mr/index.html index ff467c6..d014877 100644 --- a/c/mr/index.html +++ b/c/mr/index.html @@ -14,8 +14,8 @@ - - + +

Submitting merge requests for review

@@ -87,6 +87,6 @@ For the sake of safety, do not continue without clean repository. Then with comm be main or trunk.

aisa$ git status
# Check if repository is clean

# If you know, what is your default branch, you can skip next command.
aisa$ git branch
# Find the default branch in the list; should be one of the `master`, `main` or
# `trunk` and you should not have more than one of those.
# In case the list clears the terminal and you cannot see shell prompt, you can
# press `q` to quit the pager.

aisa$ git checkout master
-

Adapted from: https://www.fi.muni.cz/~xlacko1/pb071/mr.html

+

Adapted from: https://www.fi.muni.cz/~xlacko1/pb071/mr.html

\ No newline at end of file diff --git a/c/pexam/cams/index.html b/c/pexam/cams/index.html index 75421cf..dd80c96 100644 --- a/c/pexam/cams/index.html +++ b/c/pexam/cams/index.html @@ -16,8 +16,8 @@ - - + +

Watching Cams

diff --git a/c/pexam/garbage_collect/index.html b/c/pexam/garbage_collect/index.html index 7e3a277..647878d 100644 --- a/c/pexam/garbage_collect/index.html +++ b/c/pexam/garbage_collect/index.html @@ -16,8 +16,8 @@ - - + +

Garbage Collection

diff --git a/contributions/index.html b/contributions/index.html index 7d39896..3d3cfb9 100644 --- a/contributions/index.html +++ b/contributions/index.html @@ -14,8 +14,8 @@ - - + +

Contributions

Many of my contributions to open-source projects.

tmt

Description

The `tmt` tool provides a user-friendly way to work with tests. You can comfortably create new tests, safely and easily run tests across different environments, review test results, debug test code and enable tests in the CI using a consistent and concise config.

Contribution

Just a smallish contribution to the docs related to the changes implemented on the Packit side.

See repository

Fedora Infrastructure Ansible

Description

Collection of Ansible playbooks that powers the Fedora Infrastructure.

Contribution

I have adjusted the groups in the Bodhi playbooks after Packit has been granted the privileges to propose updates without restrictions.

See repository

Bodhi

Description

Bodhi is a web-system that facilitates the process of publishing updates for a Fedora-based software distribution.

Contribution

I have adjusted the client, so that it doesn't show secrets in terminal when you log in to the Bodhi via browser.

See repository

Gluetool Modules Collection

Description

Modules for gluetool — a command line centric framework usable for glueing modules into a pipeline.

Contribution
  • I have proposed a possible implementation of git merging that was later on extended.
  • I have tried to help out with Copr module after they deprecated older version of their API.
See repository

Pagure

Description

Pagure is a git-centered forge, python based using pygit2.

Contribution

I have added an API endpoint for reopening pull requests.

See repository

Copr

Description

RPM build system - upstream for Copr.

Contribution
  • Supporting external repositories for custom SRPM build method.
  • Allowing admins of Copr repositories to build without the need to ask for explicit builder permissions.
See repository

python-gitlab

Description

A python wrapper for the GitLab API.

Contribution

I have contributed support for the merge_ref on merge requests that hasn't been supported, yet it was present in the GitLab API.

See repository

PatternFly React

Description

A set of React components for the PatternFly project.

Contribution

When working on Packit Dashboard, I have spotted smaller bugs that were present in this project and fixed them upstream to provide better experience for our users.

See repository

Fira Code

Description

Free monospaced font with programming ligatures.

Contribution

I have set up a GitHub Action for building the font on each push to the default branch allowing users to install bleeding edge version of the font.

See repository

nixpkgs

Description

Nixpkgs is a collection of over 80,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.

Contribution

When I was trying out the nixpkgs, I have tried to bump .NET Core to the latest version. My changes haven't been accepted as they required bumping of multiple more packages that depended upon the .NET Core.

See repository

Darcula

Description

A theme for Visual Studio Code based on Darcula theme from Jetbrains IDEs.

Contribution

I have contributed support for diff files, though the project doesn't seem to be live anymore, so it hasn't been accepted as of now.

See repository

Packit

Description

An open source project aiming to ease the integration of your project with Fedora Linux, CentOS Stream and other distributions.

Contribution

Have a look at my pull requests.

See repository

Snitch

Description

Language agnostic tool that collects TODOs in the source code and reports them as Issues.

Contribution
  • Environment variable support for self-hosted GitLab instances
  • GitLab support
See repository

Karel the Robot

Description

Karel the robot is in general an educational programming language for beginners, created by Richard E. Pattis. This is implementation of Karel the Robot for C programming language.

This project is used for educational purposes at TUKE.

Contribution

I have contributed some refactoring tips to the author of the library.

See repository
diff --git a/cpp/category/exceptions-and-raii/index.html b/cpp/category/exceptions-and-raii/index.html index 1811abf..915f05d 100644 --- a/cpp/category/exceptions-and-raii/index.html +++ b/cpp/category/exceptions-and-raii/index.html @@ -16,8 +16,8 @@ - - + +

Exceptions and RAII

Materials related to the exceptions or RAII in C++. diff --git a/cpp/environment/index.html b/cpp/environment/index.html index 875a45a..0213677 100644 --- a/cpp/environment/index.html +++ b/cpp/environment/index.html @@ -16,8 +16,8 @@ - - + +

Environment

Required tools per OS​

diff --git a/cpp/exceptions-and-raii/placeholders/index.html b/cpp/exceptions-and-raii/placeholders/index.html index 45f494f..4d612ad 100644 --- a/cpp/exceptions-and-raii/placeholders/index.html +++ b/cpp/exceptions-and-raii/placeholders/index.html @@ -16,8 +16,8 @@ - - + +

Placeholders

Here we will try to implement some placeholders that you can find in other @@ -82,6 +82,13 @@ available since C++20.

In the end we should end up with something like this:

#include <exception>
#include <format>
#include <string>

class _todo : public std::exception {
    std::string cause;

   public:
    _todo() : cause("not yet implemented") {}
    _todo(std::string&& excuse) : cause("not yet implemented: " + excuse) {}
    virtual const char* what() const throw() { return cause.c_str(); }
};

void todo() { throw _todo(); }

template <class... Args>
void todo(std::format_string<Args...> fmt, Args&&... args) {
    throw _todo(std::format(fmt, args...));
}

class _unimplemented : public std::exception {
    std::string cause;

   public:
    _unimplemented() : cause("not implemented") {}
    _unimplemented(std::string&& excuse)
        : cause("not implemented: " + excuse) {}
    virtual const char* what() const throw() { return cause.c_str(); }
};

void unimplemented() { throw _unimplemented(); }

template <class... Args>
void unimplemented(std::format_string<Args...> fmt, Args&&... args) {
    throw _unimplemented(std::format(fmt, args...));
}

class _unreachable : public std::exception {
    std::string cause;

   public:
    _unreachable() : cause("entered unreachable code") {}
    _unreachable(std::string&& excuse)
        : cause("entered unreachable code: " + excuse) {}
    virtual const char* what() const throw() { return cause.c_str(); }
};

void unreachable() { throw _unreachable(); }

template <class... Args>
void unreachable(std::format_string<Args...> fmt, Args&&... args) {
    throw _unreachable(std::format(fmt, args...));
}
-
info

Final source code: placeholders.hpp

+
info

Final source code: placeholders.hpp

+

Post-mortem​

+

One of the things, I've forgotten about, is the fact that static analysis of +your code has no way to know those helper functions we've created as shortcuts +don't return and just throw the exception right away. Therefore we need to mark +them with [[noreturn]] to let the static analysis know that we never +return from such functions. For example:

+
[[noreturn]] void unreachable() { throw _unreachable(); }

template <class... Args>
[[noreturn]] void unreachable(std::format_string<Args...> fmt, Args&&... args) {
    throw _unreachable(std::format(fmt, args...));
}
\ No newline at end of file diff --git a/cpp/index.html b/cpp/index.html index f5ff420..498b1a7 100644 --- a/cpp/index.html +++ b/cpp/index.html @@ -14,10 +14,10 @@ - - + + -
+
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} +[[noreturn]] void todo() { throw _todo(); } /** * @brief Indicates unfinished code. @@ -22,7 +22,7 @@ void todo() { throw _todo(); } * @param args arguments to be formatted */ template -void todo(std::format_string fmt, Args&&... args) { +[[noreturn]] void todo(std::format_string fmt, Args&&... args) { throw _todo(std::format(fmt, args...)); } @@ -39,7 +39,7 @@ class _unimplemented : public std::exception { /** * @brief Indicates unimplemented code by throwing with a message of “not implemented”. */ -void unimplemented() { throw _unimplemented(); } +[[noreturn]] void unimplemented() { throw _unimplemented(); } /** * @brief Indicates unimplemented code by throwing with a message of “not implemented”. @@ -47,7 +47,7 @@ void unimplemented() { throw _unimplemented(); } * @param args arguments to be formatted */ template -void unimplemented(std::format_string fmt, Args&&... args) { +[[noreturn]] void unimplemented(std::format_string fmt, Args&&... args) { throw _unimplemented(std::format(fmt, args...)); } @@ -64,7 +64,7 @@ class _unreachable : public std::exception { /** * @brief Indicates unreachable code. */ -void unreachable() { throw _unreachable(); } +[[noreturn]] void unreachable() { throw _unreachable(); } /** * @brief Indicates unreachable code. @@ -72,6 +72,6 @@ void unreachable() { throw _unreachable(); } * @param args arguments to be formatted */ template -void unreachable(std::format_string fmt, Args&&... args) { +[[noreturn]] void unreachable(std::format_string fmt, Args&&... args) { throw _unreachable(std::format(fmt, args...)); } diff --git a/index.html b/index.html index 3389fcd..4837f85 100644 --- a/index.html +++ b/index.html @@ -14,8 +14,8 @@ - - + +

mf

blog and additional materials for courses at φ

About Me

I'm working in Red Hat in the Packit team and studying at FI MUNI while also tutoring some courses there.

Content

On this page you can find my blog or unofficial materials I have written over the course of teaching multiple courses at the FI.

Mastodon

Feel free to contact me on any of the following Mastodon accounts: Fosstodon or Hachyderm.io

diff --git a/search/index.html b/search/index.html index db2b1ce..b421733 100644 --- a/search/index.html +++ b/search/index.html @@ -14,8 +14,8 @@ - - + +

Search the documentation

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Talks

Featured talks I presented on various events.

Shift Left Testing with Packit and Testing Farm

In today's fast-paced software development landscape, ensuring the quality and reliability of upstream contributions is crucial. The traditional approach of testing at the end of the development cycle is no longer sufficient. To address this challenge, we present "Shift Left Your Testing with Packit and Testing Farm", a talk that introduces two powerful tools designed to simplify and enhance the testing process for the upstream contributions.

Packit and Testing Farm provide a dead simple way to build and test your upstream contributions against both public or internal Red Hat testing infrastructure. In this talk, we will explore the capabilities of both tools and demonstrate how they can be seamlessly integrated into your development workflow.

In addition to the current capabilities, we will share our plans for Packit and Testing.

  • QEcamp23
  • virtual
  • 11/2023

Packit: RPM integration, all in one

Do you want to automate how you build and test your RPM packages? Do you maintain any package in Fedora and want to automate the releases? Or are you just interested in CI/CD on GitHub or GitLab, Fedora and integration of upstream projects with RPM-based Linux distributions? In this session, we are going to deep-dive into features of Packit that can help you do your day-to-day job.
  • DevConf.cz
  • Brno, Czechia
  • 6/2023

Also presented on:

  • DevConf.cz Mini in Brno, Czechia (3/2023)
Watch recordingSee slides

Credits to Paweł Kosiec for implementing his own React components for talks.