std::pointer_to_unary_function
template< class Arg, class Result > class pointer_to_unary_function : public std::unary_function<Arg, Result>; | | (until C++17)(deprecated since C++11) |
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std::pointer_to_unary_function函数对象，充当一元函数的包装器。
成员函数
(constructor) | constructs a new pointer_to_unary_function object with the supplied function (public member function) |
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operator() | calls the stored function (public member function) |
STD：：指针[医]到[医]一元[医]功能：指针[医]到[医]一元[医]功能
explicit pointer_to_unary_function( Result (*f)(Arg) ); | | |
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构造一个pointer_to_unary_function具有存储函数的函数对象。f...
参数
f | - | pointer to a function to store |
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STD：：指针[医]到[医]一元[医]功能：操作员%28%29
Result operator()( Arg x ) const; | | |
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调用存储函数。
参数
x | - | argument to pass to the function |
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返回值
被调用的函数返回的值。
另见
pointer_to_binary_function (until C++17) | adaptor-compatible wrapper for a pointer to binary function (class template) |
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ptr_fun (until C++17) | creates an adaptor-compatible function object wrapper from a pointer to function (function template) |
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