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77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
#include <exception>
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#include <format>
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#include <string>
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class _todo : public std::exception {
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std::string cause;
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public:
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_todo() : cause("not yet implemented") {}
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_todo(std::string&& excuse) : cause("not yet implemented: " + excuse) {}
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virtual const char* what() const throw() { return cause.c_str(); }
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};
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/**
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* @brief Indicates unfinished code.
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*/
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[[noreturn]] void todo() { throw _todo(); }
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/**
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* @brief Indicates unfinished code.
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* @param fmt an object that represents the format string
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* @param args arguments to be formatted
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*/
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template <class... Args>
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[[noreturn]] void todo(std::format_string<Args...> fmt, Args&&... args) {
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throw _todo(std::format(fmt, args...));
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}
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class _unimplemented : public std::exception {
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std::string cause;
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public:
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_unimplemented() : cause("not implemented") {}
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_unimplemented(std::string&& excuse)
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: cause("not implemented: " + excuse) {}
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virtual const char* what() const throw() { return cause.c_str(); }
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};
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/**
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* @brief Indicates unimplemented code by throwing with a message of “not implemented”.
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*/
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[[noreturn]] void unimplemented() { throw _unimplemented(); }
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/**
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* @brief Indicates unimplemented code by throwing with a message of “not implemented”.
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* @param fmt an object that represents the format string
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* @param args arguments to be formatted
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*/
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template <class... Args>
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[[noreturn]] void unimplemented(std::format_string<Args...> fmt, Args&&... args) {
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throw _unimplemented(std::format(fmt, args...));
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}
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class _unreachable : public std::exception {
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std::string cause;
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public:
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_unreachable() : cause("entered unreachable code") {}
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_unreachable(std::string&& excuse)
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: cause("entered unreachable code: " + excuse) {}
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virtual const char* what() const throw() { return cause.c_str(); }
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};
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/**
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* @brief Indicates unreachable code.
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*/
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[[noreturn]] void unreachable() { throw _unreachable(); }
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/**
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* @brief Indicates unreachable code.
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* @param fmt an object that represents the format string
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* @param args arguments to be formatted
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*/
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template <class... Args>
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[[noreturn]] void unreachable(std::format_string<Args...> fmt, Args&&... args) {
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throw _unreachable(std::format(fmt, args...));
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}
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