std::indirect_binary_predicate
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Defined in header
<iterator> |
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template< class F, class I1, class I2 >
concept indirect_binary_predicate = |
(since C++20) | |
The concept indirect_binary_predicate specifies requirements for algorithms that call binary predicates as their arguments. The key difference between 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.