chomp::homology::Tabulated Class Reference

A class for storing tabulated configurations of neighbors for various dimensions. More...

#include <tabulate.h>

List of all members.

Public Member Functions
	Tabulated ()
	The default constructor.
	~Tabulated ()
	The destructor.
int	read (int dim, const char *filename)
	Reads tabulated configurations from a file.
int	write (int dim, const char *filename) const
	Writes tabulated configurations to a file.
int	compute (int dim)
	Computes tabulated configurations for a specific dimension.
int	define (int dim, char *buffer)
	Sets tabulated configuration bits to a given table.
const char *	operator[] (int dim) const
	Retrieves the buffer allocated for the specific dimension or returns the null pointer if none.
Static Public Member Functions
static int	get (const char *table, int_t bitnumber)
	Retrieve the given bit from the given table.
static void	set (char *table, int_t bitnumber)
	Sets the given bit in the given table.
Private Attributes
char *	tables [maxdim]
	The tabulated configurations.
bool	deallocate [maxdim]
	Should the configuration tables be deallocated?
int	size [maxdim]
	The size of the table in bytes for each dimension.
Static Private Attributes
static const int	maxdim = 8
	The strict upper bound for the supported dimensions.

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Detailed Description

A class for storing tabulated configurations of neighbors for various dimensions.

Definition at line 51 of file tabulate.h.

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Constructor & Destructor Documentation

chomp::homology::Tabulated::Tabulated

(

)

The default constructor.

chomp::homology::Tabulated::~Tabulated

(

)

The destructor.

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Member Function Documentation

int chomp::homology::Tabulated::compute

(

int

dim

)

Computes tabulated configurations for a specific dimension.

int chomp::homology::Tabulated::define	(	int	dim,
		char *	buffer
	)			[inline]

Sets tabulated configuration bits to a given table.

Note: This buffer will not be deallocated automatically. Call this function with the null pointer to disable the table.

Definition at line 101 of file tabulate.h.

References deallocate, maxdim, and tables.

{
        if ((dim <= 0) || (dim >= maxdim))
                return -1;
        if (tables [dim] && deallocate [dim])
        {
                delete [] (tables [dim]);
                deallocate [dim] = false;
        }
        tables [dim] = buffer;
        return 0;
} /* Tabulated::define */

int chomp::homology::Tabulated::get	(	const char *	table,
		int_t	bitnumber
	)			[inline, static]

Retrieve the given bit from the given table.

Definition at line 122 of file tabulate.h.

Referenced by chomp::homology::acyclic().

{
        if (table [bitnumber >> 3] & (1 << (bitnumber & 0x07)))
                return 1;
        else
                return 0;
} /* Tabulated::get */

const char * chomp::homology::Tabulated::operator[]

(

int

dim

)

const [inline]

Retrieves the buffer allocated for the specific dimension or returns the null pointer if none.

Definition at line 114 of file tabulate.h.

References maxdim, and tables.

{
        if ((dim <= 0) || (dim >= maxdim))
                return 0;
        else
                return tables [dim];
} /* Tabulated::operator [] */

int chomp::homology::Tabulated::read	(	int	dim,
		const char *	filename
	)

Reads tabulated configurations from a file.

void chomp::homology::Tabulated::set	(	char *	table,
		int_t	bitnumber
	)			[inline, static]

Sets the given bit in the given table.

Definition at line 130 of file tabulate.h.

{
        table [bitnumber >> 3] |=
                static_cast<char> (1 << (bitnumber & 0x07));
        return;
} /* Tabulated::set */

int chomp::homology::Tabulated::write	(	int	dim,
		const char *	filename
	)			const

Writes tabulated configurations to a file.

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Member Data Documentation

bool chomp::homology::Tabulated::deallocate[maxdim] [private]

Should the configuration tables be deallocated?

Definition at line 92 of file tabulate.h.

Referenced by define().

const int chomp::homology::Tabulated::maxdim = 8 [static, private]

The strict upper bound for the supported dimensions.

Definition at line 86 of file tabulate.h.

Referenced by define(), and operator[]().

int chomp::homology::Tabulated::size[maxdim] [private]

The size of the table in bytes for each dimension.

Definition at line 95 of file tabulate.h.

char* chomp::homology::Tabulated::tables[maxdim] [private]

The tabulated configurations.

Definition at line 89 of file tabulate.h.

Referenced by define(), and operator[]().

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

• chomp/homology/tabulate.h