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std::greater

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Revision as of 21:22, 30 August 2013 by Dieram3 (Talk | contribs)

 
 
 
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Defined in header <functional>
(1)
template< class T >
 struct greater;
(until C++11)
template< class T = void >
 struct greater;
(since C++14)
(2)
template<>
 struct greater<void>;
(since C++14)

Function object for performing comparisons. Implements operator>.

Contents

Notes

If the built-in operator> does not provide total order for pointers, a partial specialization of std::greater for pointer types is provided, which guarantees total order.

Member types

type definition
result_type bool
first_argument_type T
second_argument_type T

Member functions

operator()
checks if the first argument is greater than the second
(public member function)


std::greater::operator()

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

Checks whether lhs is greater than rhs.

Parameters

lhs, rhs - values to compare

Return value

true if lhs > rhs, false otherwise.

Exceptions

(none)

Possible implementation

bool operator()(const T &lhs, const T &rhs) const 
{
    return lhs > rhs;
}