Standard C++ Library Class Reference

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equal_to

Function Object

Summary

Binary function object that returns true if its first argument equals its second

Contents

Synopsis●

Description●

Interface●

See Also●

Synopsis

#include <functional>

template <class T>

struct equal_to;

Description

equal_to is a binary function object. Its operator() returns true if x is equal to y. You can pass an

equal_to object to any algorithm that requires a binary function. For example, the transform algorithm

applies a binary operation to corresponding values in two collections and stores the result. equal_to

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(),