hitfit::Objpair Class Reference

Represent a pair of objects in Pair_Table. More...

#include <Objpair.h>

Public Member Functions
int	for_constraint (std::vector< signed char >::size_type k) const
	Retrieve the value set for a constraint. More...
void	has_constraint (std::vector< signed char >::size_type k, int val)
	Set the value for a constraint to a value. More...
int	i () const
	Return the index of the first object. More...
int	j () const
	Return the index of the second object. More...
	Objpair (int i, int j, int nconstraints)
	Constructor. More...

Private Attributes
std::vector< signed char >	_for_constraint
int	_i
int	_j

Friends
std::ostream &	operator<< (std::ostream &s, const Objpair &o)
	Output stream operator, print the content of this Objpair to an output stream. More...

Detailed Description

Represent a pair of objects in Pair_Table.

An Objpair consists of two object indices in a Fourvec_Event, plua a value for each constraint. This value is defined as:

• +1 if these two objects are used on the left-hand side of the constraint.
• -1 if these two objects are used on the right-hand side of the constraint. 0 if these two objects are not used by that constraint.

Definition at line 58 of file Objpair.h.

Constructor & Destructor Documentation

Objpair()

hitfit::Objpair::Objpair	(	int	i,
		int	j,
		int	nconstraints
	)

Constructor.

Parameters

i	Index of the first object.
j	Index of the second object.
nconstraints	The number of constraints in the problem.

Definition at line 42 of file Objpair.cc.

      : _i(i), _j(j), _for_constraint(nconstraints) {}

Member Function Documentation

for_constraint()

int hitfit::Objpair::for_constraint

(

std::vector< signed char >::size_type

k

)

const

Retrieve the value set for a constraint.

Parameters

k	The index of the constraint, index starts from 0.

has_constraint()

void hitfit::Objpair::has_constraint	(	std::vector< signed char >::size_type	k,
		int	val
	)

Set the value for a constraint to a value.

Parameters

k	The index of the constraint, index starts from 0.
val	The value to set for this constraint.

Definition at line 53 of file Objpair.cc.

  {
    assert(k < _for_constraint.size());
    _for_constraint[k] = static_cast<signed char>(val);
  }

References _for_constraint, cms::cuda::assert(), dqmdumpme::k, and heppy_batch::val.

i()

int hitfit::Objpair::i

(

)

const

Return the index of the first object.

j()

int hitfit::Objpair::j

(

)

const

Return the index of the second object.

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  s, const Objpair &  o  )

friend

Output stream operator, print the content of this Objpair to an output stream.

Parameters

s	The stream to which to write.
o	The instance of Objpair to be printed.

Definition at line 74 of file Objpair.cc.

  {
    s << o._i << " " << o._j;
    for (unsigned k = 0; k < o._for_constraint.size(); ++k)
      s << " " << static_cast<int>(o._for_constraint[k]);
    return s;
  }

Member Data Documentation

_for_constraint

std::vector<signed char> hitfit::Objpair::_for_constraint

private

The list of values for each constraint.

Definition at line 127 of file Objpair.h.

Referenced by has_constraint().

_i

int hitfit::Objpair::_i

private

Index of the first object.

Definition at line 116 of file Objpair.h.

_j

int hitfit::Objpair::_j

private

Index of the second object.

Definition at line 121 of file Objpair.h.