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C++
 
Utilities library
General utilities
Relational operators (deprecated in C++20)
Integer comparison functions
(C++20)(C++20)(C++20)    
(C++20)
Swap and type operations
(C++20)
(C++14)
(C++11)
(C++23)
(C++11)
(C++23)
(C++11)
(C++11)
(C++17)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++11)
(C++11)
(C++17)
(C++17)
(C++23)



 
Diagnostics library
 
std::error_category
 
virtual std::error_condition default_error_condition( int val ) const noexcept;
(since C++11)

Returns the error condition for the given error value.

Equivalent to std::error_condition(val, *this).

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.

Parameters

val - error value for which to return error condition

Return value

The error condition for the given error code.