Standard C++ Library

NAME

  pointer_to_binary_function  - A function object which adapts a pointer to a
  binary function to work where a binary_function is called for.

SYNOPSIS

  #include <functional>

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

DESCRIPTION

  The pointer_to_binary_function class encapsulates a pointer to a two-
  argument function.  The class provides an 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 provided with the appropriate pointer to a
  function.

INTERFACE

  template <class Arg1, class Arg2, class Result>

  class pointer_to_binary_function : public binary_function<Arg1, Arg2,
  Result> {
  public:
    typedef typename binary_function<Arg1, Arg2,
                                     Result>::second_argument_type
                                              second_argument_type;
    typedef typename binary_function<Arg1, Arg2,
                                     Result>::first_argument_type
                                              first_argument_type;
    typedef typename binary_function<Arg1, Arg2, Result>::result_type
                                                          result_type;
    explicit pointer_to_binary_function (Result (*f)(Arg1, Arg2));
    Result operator() (const Arg1&, const Arg2&) const;
  };

  template<class Arg1, class Arg2, class Result>
  pointer_to_binary_function<Arg1, Arg2, Result>
   ptr_fun (Result (*x)(Arg1, Arg2));

SEE ALSO

  binary_function, function_objects, pointer_to_unary_function, ptr_fun

STANDARDS CONFORMANCE

  ANSI X3J16/ISO WG21 Joint C++ Committee



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