Standard C++ Library Class Reference

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greater

Function Object

Summary

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

Contents

Synopsis●

Description●

Warnings●

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Synopsis

#include <functional>

template <class T>

struct greater : binary_function<T, T, bool> {

typedef typename binary_function<T, T, bool>::second_argument_type

second_argument_type;

typedef typename binary_function<T, T, bool>::first_argument_type

first_argument_type;

typedef typename binary_function<T, T, bool>::result_type

result_type;

bool operator() (const T&, const T&) const;

};

Description

greater is a binary function object. Its operator() returns true if x is greater than y. You can pass a greater 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. greater would be used in that algorithm

in the following manner:

vector<int> vec1;

vector<int> vec2;

vector<int> vecResult;