Standard C++	Library
 		 Copyright 1996, Rogue Wave Software, Inc.

 NAME

   plus	- A binary function object that	returns	the result of adding
   its first	and second arguments.

 SYNOPSIS

   #include <functional>

     template<class T>
     struct plus	: public binary_function<T, T, T> ;

 DESCRIPTION

   plus is a binary function object.  Its operator() returns the	result
   of adding x and y.  You can pass	a plus object to any algorithm
   that uses a binary function.  For	example, the transform
   algorithm applies a binary operation to corresponding values in two
   collections and stores the  result.  plus would be	used in	that
   algorithm in the following	manner:

   vector<int> vec1;
   vector<int> vec2;
   vector<int> vecResult;
   transform(vec1.begin(), vec1.end(),
 	    vec2.begin(),
 	    vecResult.begin(), plus<int>());

   After	this call to transform,	vecResult(n) will contain vec1(n) plus
   vec2(n).

 INTERFACE

   template<class T>
   struct plus :	binary_function<T, T, T> {
    typedef typename binary_function<T, T, T>::second_argument_type
 					      second_argument_type;
    typedef typename binary_function<T, T, T>::first_argument_type
 					      first_argument_type;
    typedef typename binary_function<T, T, T>::result_type result_type;
    T operator()	(const T&, const T&) const;
   };

 WARNING

   If your compiler does	not support default template parameters, you
   need  to always supply the Allocator template argument.  For
   instance, you  will need to write:

   vector<int, allocator<int> >

   instead of :

   vector<int>

 SEE ALSO

   binary_function, function objects

 STANDARDS CONFORMANCE
   ANSI X3J16/ISO WG21 Joint C++	Committee