Standard C++ Library Class Reference

Click on the banner to return to the Class Reference home page.

less

Function Object

Summary

Binary function object that returns true if its first argument is less than its second

Contents

Synopsis●

Description●

Interface●

Warning●

See Also●

Synopsis

#include<functional>

template <class T>

struct less : public binary_function<T, T, bool> ;

Description

less is a binary function object. Its operator() returns true if x is less than y. You can pass a less 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. less would be

used in that algorithm in the following manner:

vector<int> vec1;

vector<int> vec2;

vector<int> vecResult;