std::hash (std::error_code)

 

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std::error_code

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operator< operator== operator!=

operator<<

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is_error_code_enum

hash<std::error_code>

 

Defined in header <system_error>
struct hash<error_code>;		(since C++11)

The template specialization of std::hash for std::error_code allows users to obtain hashes of objects of type std::error_code.