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std::indire...y_predicate(3)  C++ Standard Libary std::indire...y_predicate(3)

NAME
       std::indirect_binary_predicate -	std::indirect_binary_predicate

Synopsis
	  Defined in header <iterator>
	  template< class F, class I1, class I2	>

	  concept indirect_binary_predicate =
	  std::indirectly_readable<I1> &&
	  std::indirectly_readable<I2> &&
	  std::copy_constructible<F> &&
	  std::predicate<F&,  std::iter_value_t<I1>&,  std::iter_value_t<I2>&>
       &&
	  std::predicate<F&,	 std::iter_value_t<I1>&,      std::iter_refer-
       ence_t<I2>>  (since C++20)
	  &&
	  std::predicate<F&,			    std::iter_reference_t<I1>,
       std::iter_value_t<I2>&>
	  &&
	  std::predicate<F&, std::iter_reference_t<I1>,
	  std::iter_reference_t<I2>> &&

	  std::predicate<F&, std::iter_common_reference_t<I1>,
	  std::iter_common_reference_t<I2>>;

	  The concept indirect_binary_predicate	specifies requirements for al-
       gorithms	that
	  call binary predicates as their arguments. The  key  difference  be-
       tween this concept
	  and std::predicate is	that it	is applied to the types	that I1	and I2
       references,
	  rather than I1 and I2	themselves.

	 Semantic requirements

	  F,  I1,  and I2 model	indirect_binary_predicate only if all concepts
       it subsumes are
	  modeled.

http://cppreference.com		  2022.07.31	  std::indire...y_predicate(3)

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