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std::error_...::equivalent(3) C++ Standard Libarystd::error_...::equivalent(3)

NAME
       std::error_category::equivalent - std::error_category::equivalent

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

	  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() ==	condi-
       tion.

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.

http://cppreference.com		  2022.07.31	 std::error_...::equivalent(3)

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