ReverseComparator< Cmp > Struct Template Reference

Wrapper that reverses (exchanges) the two arguments of a comparator. Normally you should use the make-function reverseComparator() because then you do not need to specify the template arguments. More...

#include <OpenMS/KERNEL/ComparatorUtils.h>

Inheritance diagram for ReverseComparator< Cmp >:

Collaboration diagram for ReverseComparator< Cmp >:

Public Member Functions
	ReverseComparator (ReverseComparator const &cmp)
	ReverseComparator (Cmp const &cmp=Cmp())
template<typename T1 , typename T2 >
Cmp::result_type	operator() (T1 left, T2 right) const

Protected Attributes
const Cmp &	cmp_

Related Functions
(Note that these are not member functions.)
template<class Cmp >
ReverseComparator< Cmp >	reverseComparator (Cmp const &cmp)
	Make-function to create a ReverseComparator from another comparator without the need to specify the template arguments. More...

Detailed Description

template<class Cmp>
struct OpenMS::ReverseComparator< Cmp >

Wrapper that reverses (exchanges) the two arguments of a comparator. Normally you should use the make-function reverseComparator() because then you do not need to specify the template arguments.

For example, ReverseComparator<less<T> > works like greater<T> .

Constructor & Destructor Documentation

ReverseComparator() [1/2]

ReverseComparator ( ReverseComparator< Cmp > const &  cmp )

inline

ReverseComparator() [2/2]

ReverseComparator ( Cmp const &  cmp = Cmp() )

inline

Member Function Documentation

operator()()

Cmp::result_type operator() ( T1  left, T2  right  ) const

inline

References ReverseComparator< Cmp >::cmp_.

Friends And Related Function Documentation

reverseComparator()

ReverseComparator< Cmp > reverseComparator ( Cmp const &  cmp )

related

Make-function to create a ReverseComparator from another comparator without the need to specify the template arguments.

For example,

int i = 88, j = 99;
if ( reverseComparator(std::less<int>())(j,i) )
{
  //    // yes, 99 > 88.
}

Member Data Documentation

cmp_

const Cmp& cmp_

protected

Referenced by ReverseComparator< Cmp >::operator()().