std::error_category(3cxx) std::error_category(3cxx)
NAME
std::error_category
SYNOPSIS
Public Member Functions
error_category (const error_category &)=delete
virtual error_condition default_error_condition (int __i) const
noexcept
virtual bool equivalent (const error_code &__code, int __i) const
noexcept
virtual bool equivalent (int __i, const error_condition &__cond) const
noexcept
virtual string message (int) const =0
virtual const char * name () const noexcept=0
bool operator!= (const error_category &__other) const noexcept
bool operator< (const error_category &__other) const noexcept
error_category & operator= (const error_category &)=delete
bool operator== (const error_category &__other) const noexcept
Detailed Description
Abstract base class for types defining a category of error codes.
An error category defines a context that give meaning to the integer
stored in an error_code or error_condition object. For example, the
standard errno constants such a EINVAL and ENOMEM are associated with
the 'generic' category and other OS-specific error numbers are
associated with the 'system' category, but a user-defined category
might give different meanings to the same numerical values.
Since
C++11
Author
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libstdc++ Sat May 13 2023 std::error_category(3cxx)
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