fastjet::MinHeap Class Reference

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#include <fastjet/internal/MinHeap.hh>

Public Member Functions
	MinHeap (const std::vector< double > &values, unsigned int max_size)
	construct a MinHeap from the vector of values, allowing future expansion to a maximum size max_size; More...
	MinHeap (unsigned int max_size)
	do the minimal setup for a MinHeap that can reach max_size; initialisation must be performed later with the actual values. More...
	MinHeap (const std::vector< double > &values)
	constructor in which the the maximum size is the size of the values array More...
void	initialise (const std::vector< double > &values)
	initialise the heap with the supplied values. More...
unsigned int	minloc () const
	return the location of the minimal value on the heap More...
double	minval () const
	return the minimal value on the heap More...
double	operator[] (int i) const
void	remove (unsigned int loc)
	remove the value at the specified location (i.e. More...
void	update (unsigned int, double)
	update the value at the specified location More...

Detailed Description

Definition at line 49 of file MinHeap.hh.

Constructor & Destructor Documentation

MinHeap() [1/3]

fastjet::MinHeap::MinHeap ( const std::vector< double > &  values, unsigned int  max_size  )

inline

construct a MinHeap from the vector of values, allowing future expansion to a maximum size max_size;

Definition at line 53 of file MinHeap.hh.

MinHeap() [2/3]

fastjet::MinHeap::MinHeap ( unsigned int  max_size )

inline

do the minimal setup for a MinHeap that can reach max_size; initialisation must be performed later with the actual values.

Definition at line 58 of file MinHeap.hh.

MinHeap() [3/3]

fastjet::MinHeap::MinHeap ( const std::vector< double > &  values )

inline

constructor in which the the maximum size is the size of the values array

Definition at line 61 of file MinHeap.hh.

Member Function Documentation

initialise()

void fastjet::MinHeap::initialise

(

const std::vector< double > &

values

)

initialise the heap with the supplied values.

construct the MinHeap; structure will be as follows: Should only be called if the constructor did not supply values.

_heap[0].minloc points to globally smallest entry _heap[1].minloc points to smallest entry in one half of heap _heap[2].minloc points to smallest entry in other half of heap

. for _heap[i], the "parent" is to be found at (i-1)/2

Definition at line 47 of file MinHeap.cc.

minloc()

unsigned int fastjet::MinHeap::minloc ( ) const

inline

return the location of the minimal value on the heap

Definition at line 69 of file MinHeap.hh.

minval()

double fastjet::MinHeap::minval ( ) const

inline

return the minimal value on the heap

Definition at line 73 of file MinHeap.hh.

operator[]()

double fastjet::MinHeap::operator[] ( int  i ) const

inline

Definition at line 75 of file MinHeap.hh.

remove()

void fastjet::MinHeap::remove ( unsigned int  loc )

inline

remove the value at the specified location (i.e.

replace it with the largest possible value).

Definition at line 79 of file MinHeap.hh.

update()

void fastjet::MinHeap::update	(	unsigned int	loc,
		double	new_value
	)

update the value at the specified location

Definition at line 79 of file MinHeap.cc.

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

• include/fastjet/internal/MinHeap.hh
• src/MinHeap.cc