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Apache C++ Standard Library Reference Guide

plus

Library:  General utilities


plus binary_function

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Summary

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

Synopsis

#include <functional>

namespace std {
  template<class T>
  struct plus;
}

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:

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

Interface

See Also

binary_function, Function Objects

Standards Conformance

ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 20.3.2



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