A class for representing a positive number with negative values serving as the infinity (used in the Dijkstra algorithm). More...

Public Member Functions
	posWeight ()
	The default constructor.
	posWeight (const wType &_value)
	An optional constructor.
void	setInfinity ()
	Sets the value to the infinity.
bool	isInfinity () const
	Returns true iff the value corresponds to the infinity.
const wType &	getValue () const
	Returns the value stored in this object.
Private Attributes
wType	value
	The actual number.
Friends
bool	operator< (const posWeight &x, const posWeight &y)
	The < operator for comparing the numbers.
std::ostream &	operator<< (std::ostream &out, const posWeight &x)
	The operator for showing the number to the output stream.

Detailed Description

template<class wType = int>
class chomp::homology::diGraph< wType >::posWeight

A class for representing a positive number with negative values serving as the infinity (used in the Dijkstra algorithm).

Definition at line 498 of file digraph.h.

Constructor & Destructor Documentation

template<class wType = int>

chomp::homology::diGraph< wType >::posWeight::posWeight ( ) [inline]

The default constructor.

Definition at line 502 of file digraph.h.

References chomp::homology::diGraph< wType >::posWeight::value.

template<class wType = int>

chomp::homology::diGraph< wType >::posWeight::posWeight ( const wType & _value ) [inline, explicit]

An optional constructor.

Definition at line 509 of file digraph.h.

References chomp::homology::diGraph< wType >::posWeight::value.

                {
                        if (_value < 0)
                                value = 0;
                        else
                                value = _value;
                        return;
                }

Member Function Documentation

template<class wType = int>

const wType& chomp::homology::diGraph< wType >::posWeight::getValue ( ) const [inline]

Returns the value stored in this object.

Definition at line 532 of file digraph.h.

References chomp::homology::diGraph< wType >::posWeight::value.

                {
                        return value;
                }

template<class wType = int>

bool chomp::homology::diGraph< wType >::posWeight::isInfinity ( ) const [inline]

Returns true iff the value corresponds to the infinity.

Definition at line 526 of file digraph.h.

References chomp::homology::diGraph< wType >::posWeight::value.

                {
                        return (value < 0);
                }

template<class wType = int>

void chomp::homology::diGraph< wType >::posWeight::setInfinity ( ) [inline]

Sets the value to the infinity.

Definition at line 519 of file digraph.h.

References chomp::homology::diGraph< wType >::posWeight::value.

                {
                        value = -1;
                        return;
                }

Friends And Related Function Documentation

template<class wType = int>

bool operator<	(	const posWeight &	x,
		const posWeight &	y
	)			`[friend]`

The < operator for comparing the numbers.

Definition at line 538 of file digraph.h.

                {
                        if (y. isInfinity ())
                                return !(x. isInfinity ());
                        else if (x. isInfinity ())
                                return false;
                        return (x. value < y. value);
                }

template<class wType = int>

std::ostream& operator<<	(	std::ostream &	out,
		const posWeight &	x
	)			`[friend]`

The operator for showing the number to the output stream.

Definition at line 549 of file digraph.h.

                {
                        if (x. isInfinity ())
                                out << "+oo";
                        else
                                out << x. getValue ();
                        return out;
                }