pointer_to_binary_function

Module:  Standard C++ Library   Library:  General utilities

pointer_to_binary_function  binary_function

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A function object that adapts a pointer to a binary function, to take the place of a binary_function

#include <functional>

namespace std {
  template <class Arg1, class Arg2, class Result>
  class pointer_to_binary_function;
}

The pointer_to_binary_function class encapsulates a pointer to a two-argument function. The class uses operator() so that the resulting object serves as a binary function object for that function.

The ptr_fun() function is overloaded to create instances of a pointer_to_binary_function when included with the appropriate pointer to a function.

namespace std {

  template <class Arg1, class Arg2, class Result>
  class pointer_to_binary_function : public
        binary_function<Arg1, Arg2, Result> {

    public:
      explicit pointer_to_binary_function
               (Result (*f)(Arg1, Arg2));
      Result operator() (const Arg1&, const Arg2&) const;
  };

}

binary_function, Function Objects, pointer_to_unary_function, ptr_fun()

ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 20.3.7

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