Standard Template Library Programmer's Guide

Member	Where defined	Description
first_argument_type	Adaptable Binary Predicate	The type of the first argument: T
second_argument_type	Adaptable Binary Predicate	The type of the second argument: T
result_type	Adaptable Binary Predicate	The type of the result: bool
less()	DefaultConstructible	The default constructor.
bool operator()(const T& x, const T& y)	Binary Function	Function call operator. The return value is x < y.

New members

All of less's members are defined in the Adaptable Binary Predicate and DefaultConstructible requirements. less does not introduce any new members.

See also

The function object overview, Strict Weak Ordering, Adaptable Binary Predicate, LessThan Comparable, equal_to, not_equal_to, greater, greater_equal, less_equal

greater<T>

Category: functors

Component type: type

Description

Greater<T> is a function object. Specifically, it is an Adaptable Binary Predicate, which means it is a function object that tests the truth or falsehood of some condition. If f is an object of class greater<T> and x and y are objects of class T, then f(x,y) returns true if x > y and false otherwise.

Example

Sort a vector in descending order, rather than the default ascending order.

vector<int> V;
…
sort(V.begin(), V.end(), greater<int>());

Definition

Defined in the standard header functional, and in the nonstandard backward-compatibility header function.h.

Template parameters

Parameter	Description
T	The type of greater's arguments.

Model of

Adaptable Binary Predicate, DefaultConstructible

Type requirements

T is LessThan Comparable.

Public base classes

binary_function <T, T, bool>.

Members

Member	Where defined	Description
first_argument_type	Adaptable Binary Predicate	The type of the first argument: T
second_argument_type	Adaptable Binary Predicate	The type of the second argument: T
result_type	Adaptable Binary Predicate	The type of the result: bool