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

NAME
       std::error_code::error_code - std::error_code::error_code

Synopsis
	  error_code()	  noexcept;					   (1)
       (since C++11)
	  error_code( int ec,  const  error_category&  ecat  )	noexcept;  (2)
       (since C++11)
	  template<   class   ErrorCodeEnum  >				   (3)
       (since C++11)
	  error_code( ErrorCodeEnum e )	noexcept;
	  error_code( const  error_code&  other	 )  =  default;		   (4)
       (since C++11)
									 (im-
       plicitly	declared)
	  error_code(  error_code&&  other  )  =  default;		   (5)
       (since C++11)
									 (im-
       plicitly	declared)

	  Constructs new error code.

	  1) Constructs	error code  with  default  value.  Equivalent  to  er-
       ror_code(0,
	  std::system_category()).
	  2)  Constructs  error	 code  with ec as the platform-dependent error
       code and	ecat as
	  the corresponding error category.
	  3) Constructs	error code from	an error code enum e. Equivalent to
	  make_error_code(e), where make_error_code is only found by argument-
       dependent
	  lookup. This overload	participates in	overload resolution only if
	  std::is_error_code_enum<ErrorCodeEnum>::value	is true.
	  4,5) Implicitly defined copy constructor and move constructor.  Ini-
       tializes	the error
	  code with the	contents of the	other.

Parameters
	  other	- another error	code to	initialize with
	  ec	- platform dependent error code	to construct with
	  ecat	- error	category corresponding to ec
	  e	- error	code enum to construct with

	  Defect reports

	  The following	behavior-changing defect reports were applied retroac-
       tively to
	  previously published C++ standards.

	     DR	   Applied to	       Behavior	as published		  Cor-
       rect behavior
	  LWG  3629  C++11	 only std::make_error_code overloads were ADL-
       found overloads are
			      used				       used

See also
	  make_error_code(std::errc)	    creates error code value for  errc
       enum e
	  (C++11)			    (function)
	  make_error_code(std::io_errc)	    constructs an iostream error code
	  (C++11)			    (function)
	  make_error_code(std::future_errc) constructs a future	error code
	  (C++11)			    (function)

http://cppreference.com		  2024.06.10	 std::error_...::error_code(3)

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