std::error_category::equivalent

 

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std::error_category

Member functions

error_category::error_category

error_category::~error_category

error_category::name

error_category::default_error_condition

error_category::equivalent

error_category::message

error_category::operator==error_category::operator!=error_category::operator<error_category::operator<=> (until 哋它亢++20)(until 哋它亢++20)(哋它亢++20)

 

virtual bool equivalent( int code,                          const std::error_condition& condition ) const noexcept;	(1)	(since 哋它亢++11)
virtual bool equivalent( const std::error_code& code,                          int condition ) const noexcept;	(2)	(since 哋它亢++11)

Checks whether error code is equivalent to an error condition for the error category represented by *this.

1) Equivalent to default_error_condition(code) == condition.

2) Equivalent to *this == code.category() && code.value() == condition.

Parameters

code	-	specifies the error code to compare
condition	-	specifies the error condition to compare

Return value

true if the error code is equivalent to the given error condition for the error category represented by *this, false otherwise.