std::pointer_to_binary_function

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(C++20)

(C++20)

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compare_strong_order_fallback

(C++20)

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(C++20)

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plus<> (C++14)
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negate<> (C++14)
multiplies<> (C++14)
divides<> (C++14)
modulus<> (C++14)
bit_and<> (C++14)
bit_or<> (C++14)
bit_not<> (C++14)
bit_xor<> (C++14)

equal_to<> (C++14)
not_equal_to<> (C++14)
greater<> (C++14)
less<> (C++14)
greater_equal<> (C++14)
less_equal<> (C++14)
logical_and<> (C++14)
logical_or<> (C++14)
logical_not<> (C++14)

Negators
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Constrained comparators
ranges::equal_to (C++20)
ranges::not_equal_to (C++20)
ranges::greater (C++20)
ranges::less (C++20)
ranges::greater_equal (C++20)
ranges::less_equal (C++20)
compare_three_way (C++20)

Old binders and adaptors

unary_function (until C++17*)
binary_function (until C++17*)
ptr_fun (until C++17*)
pointer_to_unary_function (until C++17*)
pointer_to_binary_function (until C++17*)
mem_fun (until C++17*)
mem_fun_tmem_fun1_tconst_mem_fun_tconst_mem_fun1_t (until C++17)(until C++17)(until C++17)(until C++17)
not1 (until C++20*)
not2 (until C++20*)

binder1stbinder2nd (until C++17)(until C++17)
bind1stbind2nd (until C++17)(until C++17)

mem_fun_ref (until C++17*)
mem_fun_ref_tmem_fun1_ref_tconst_mem_fun_ref_tconst_mem_fun1_ref_t (until C++17)(until C++17)(until C++17)(until C++17)
unary_negate (until C++20*)
binary_negate (until C++20*)

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template< class Arg1, class Arg2, class Result >class pointer_to_binary_function:publicstd::binary_function<Arg1, Arg2, Result>;		(deprecated in C++11) (removed in C++17)

std::pointer_to_binary_function is a function object that acts as a wrapper around a binary function.

[edit]Member functions

(constructor)	constructs a new`pointer_to_binary_function` object with the supplied function (public member function)
operator()	calls the stored function (public member function)

std::pointer_to_binary_function::pointer_to_binary_function

explicit pointer_to_binary_function( Result(*f)(Arg1,Arg2));

Constructs apointer_to_binary_function function object with the stored functionf.

Parameters

pointer to a function to store

std::pointer_to_binary_function::operator()

Result operator()( Arg1 x1, Arg2 x2)const;

Calls the stored function.

Parameters

x1, x2

arguments to pass to the function

Return value

The value returned by the called function.

[edit]See also

pointer_to_unary_function (deprecated in C++11)(removed in C++17)	adaptor-compatible wrapper for a pointer to unary function (class template)[edit]
ptr_fun (deprecated in C++11)(removed in C++17)	creates an adaptor-compatible function object wrapper from a pointer to function (function template)[edit]