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std::experi...al::nonesuch(3) C++ Standard Libarystd::experi...al::nonesuch(3)

NAME
       std::experimental::nonesuch - std::experimental::nonesuch

Synopsis
	  Defined in header <experimental/type_traits>
	  struct nonesuch {

	  ~nonesuch() =	delete;
	  nonesuch(nonesuch  const&) = delete;		 (library fundamentals
       TS v2)
	  void operator=(nonesuch const&) = delete;

	  };

	  std::experimental::nonesuch is a class type used by  std::experimen-
       tal::detected_t to
	  indicate detection failure.

	  nonesuch has no default constructor or initializer-list constructor,
       and is not an
	  aggregate.

Notes
	  nonesuch cannot be constructed, destroyed, or	copied.

	 Defect	reports

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

	     DR	       Applied	   to		   Behavior    as    published
       Correct behavior
	  LWG 2960 LFTSv2     nonesuch may be an aggregate and has  an	  made
       non-aggregate and
			      implicit	conversion  sequence  from {}	   re-
       moved ICS

http://cppreference.com		  2022.07.31	 std::experi...al::nonesuch(3)

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