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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_code
 
const std::error_category& category() const noexcept;
(since C++11)

Returns the error category of the error code.

Parameters

(none)

Return value

The error category of the error code.

See also

 obtains the value of the error_code
(public member function) [edit]