AnalysisUtils Namespace Reference

utility class to select combination of elements in a collection More...

Namespaces
	Classify
	classify
	Delta
	compute \( \Delta \)
	Imass
	compute Invariant mass
	Match
	find the closest element in a collection to an INavigable4Momentum
	Sort
	sort

Classes
class	Combination
	combination More...
class	Permutation
	permutation More...
struct	Selection

Functions
template<class In , class Out , class Pred >
Out	copy_if (In first, const In &last, Out res, const Pred &p)

Detailed Description

utility class to select combination of elements in a collection

IFilterUtils : Implements a copy iterator (STL is missing this utility, though one could use the std::remove_if with the negative predicate).

Utility class to get elements which pass a selection criteria.

utility class to return permutation of a collection

Tools collection.

Author

Tadashi Maeno

User must provide a class for the selection critaria. The class must have a public method "bool isAccepted(Collection::value_type e)".

Author

Tadashi Maeno

The output destination container is filled with the current iterator on the input container, only if the predicate is true. Example:

AnalysisUtils::copy_if( in.begin(), in.end(),
                        std::back_inserter(out), filter );

where in and out are STL-like containers and filter is a predicate (in our case, it could be a reference toward an IFilter).

Function Documentation

copy_if()

template<class In , class Out , class Pred >

Out AnalysisUtils::copy_if	(	In	first,
		const In &	last,
		Out	res,
		const Pred &	p
	)

Definition at line 30 of file IFilterUtils.h.

{
  for ( ; first != last; ++first ) {
    if ( p(*first) ) {
      *res++ = *first;
    }
  }
  return res;
}