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CXXLSTD, Operators, pointer_to_binary_function

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 			   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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