Map2Vector Class Reference

Helper class to make a vector of all possible combinations of int numbers contained in the input vectors (passed as values in a map). More...

#include <InclusiveBtagReconstructionModule.h>

Collaboration diagram for Map2Vector:

Public Member Functions
void	convert (std::map< int, std::vector< int > > &input, std::vector< std::vector< int > > &output)
	Do the conversion using makeEntries().

Protected Member Functions
void	makeEntries (std::map< int, std::vector< int > >::iterator positionOnTheMap, const std::map< int, std::vector< int > >::const_iterator &end, unsigned i, std::vector< std::vector< int > > &output)
	Recursively iterates over a map until the end is reached, then the output is ready.

Private Attributes
std::vector< int >	m_combination
	Vector containing current combination of numbers (e.g.

Detailed Description

Helper class to make a vector of all possible combinations of int numbers contained in the input vectors (passed as values in a map).

In every resulting combination, there is only one number from each input vector.

It is used by InclusiveBtagReconstructionModule to combine Particle indices (in StoreArray) for different mdst sources (getMdstSource) to form std::vector of all combinations not sharing common mdst source.

Definition at line 75 of file InclusiveBtagReconstructionModule.h.

Member Function Documentation

convert()

void convert	(	std::map< int, std::vector< int > > &	input,
		std::vector< std::vector< int > > &	output
	)

Do the conversion using makeEntries().

(e.g convert map<mdstSource, vector<arrayIndex>> to vector<vector<daughterArrayIndex>>)

Parameters

input	- the input map
output	- an empty vector to push back output combinations

Definition at line 163 of file InclusiveBtagReconstructionModule.cc.

{
  makeEntries(input.begin(), input.end(), 0, output);
}

makeEntries()

void makeEntries ( std::map< int, std::vector< int > >::iterator  positionOnTheMap, const std::map< int, std::vector< int > >::const_iterator &  end, unsigned  i, std::vector< std::vector< int > > &  output  )

protected

Recursively iterates over a map until the end is reached, then the output is ready.

Parameters

positionOnTheMap	- current position on the input map
end	- the end of the input map
i	- current m_combination index
output	- a vector to push back resulting combinations

Definition at line 168 of file InclusiveBtagReconstructionModule.cc.

{
  if (positionOnTheMap == end) {
    output.push_back(m_combination);
  } else {
    std::vector<int>& v = positionOnTheMap->second;
    ++positionOnTheMap;
    for (int k : v) {
      if (i < m_combination.size()) m_combination[i] = k;
      else m_combination.push_back(k);
      makeEntries(positionOnTheMap, end, i + 1, output);
    }
  }
};

Member Data Documentation

m_combination

std::vector<int> m_combination

private

Vector containing current combination of numbers (e.g.

arrayIndices of current Btag candidate's children)

Definition at line 102 of file InclusiveBtagReconstructionModule.h.

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The documentation for this class was generated from the following files:

• analysis/modules/InclusiveBtagReconstruction/include/InclusiveBtagReconstructionModule.h
• analysis/modules/InclusiveBtagReconstruction/src/InclusiveBtagReconstructionModule.cc