Standard C++ Library Class Reference

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logical_or

Function Object

Summary

Binary function object that returns true if either of its arguments are true.

Contents

Synopsis●

Description●

Interface●

Warning●

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Synopsis

#include <functional>

template <class T>

struct logical_or : binary_function<T, T, bool> ;

Description

logical_or is a binary function object. Its operator() returns true if either x or y are true. You can pass a

logical_or 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 of the

function. logical_or is used in that algorithm in the following manner:

vector<bool> vec1;

vector<bool> vec2;

vector<bool> vecResult;

transform(vec1.begin(), vec1.end(),