std::unary_function< _Arg, _Result >(3) Library Functions Manual std::unary_function< _Arg, _Result >(3)

std::unary_function< _Arg, _Result >

#include <functional>

Inherited by , std::logical_not< void >, and std::negate< void >.


typedef _Arg argument_type
argument_type is the type of the argument typedef _Result result_type
result_type is the return type

struct std::unary_function< _Arg, _Result >"Helper for defining adaptable unary function objects.

Deprecated

Deprecated in C++11, no longer in the standard since C++17.

argument_type is the type of the argument

result_type is the return type

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