std::error_...r_condition(3)

okay so bestie, this is the std::error_...r_condition(3) page from the C++ Standard Libary manual — yes, that is literally how the manual name is spelled on the page, no cap 💀. The function we're obsessing over is std::error_category::default_error_condition, and she's virtual and iconic, periodt 💅.

✨ NAME ✨

• std::error_category::default_error_condition — std::error_category::default_error_condition

like, yes bestie, the name is listed twice on the page. we keep it 💖.

🌸 Synopsis 🌸

virtual std::error_condition default_error_condition( int val ) const

(since C++11)

noexcept;

Okay so this function returns the error condition for the given error value. It's equivalent to std::error_condition(val, *this). slay 💅.

Classes derived from error_category may override this function to map certain error values to a generic category. For example, std::system_category overrides this function to map the error values that match POSIX errno values to std::generic_category. That's the whole vibe check, fr fr 🌈.

🎀 Parameters 🎀

• val — error value for which to return error condition

not me explaining val in one little line, but yes, that's the whole parameter list 🫶.

🦋 Return value 🦋

The error condition for the given error code.

lowkey note that the original says "error code" here even though the rest is saying "error value" — we are not fixing it, we are preserving it exactly, iykyk 💖.

mwah 💋 this cute little page came from http://cppreference.com, dated 2024.06.10, and the page title is std::error_...r_condition(3). bye bestie, go map those error conditions 🌈✨