bitencode.h File Reference

Detailed Description

packing single and dual bit values

Author

Thorsten Koch

Tobias Achterberg

Definition in file bitencode.h.

Go to the source code of this file.

Macros
#define	SCIP_SINGLEPACKETSIZE   (sizeof(SCIP_SINGLEPACKET)*8)
#define	SCIP_DUALPACKETSIZE   (sizeof(SCIP_DUALPACKET)*4)

Typedefs
typedef unsigned int	SCIP_SINGLEPACKET
typedef unsigned int	SCIP_DUALPACKET

Functions
void	SCIPencodeSingleBit (const int *inp, SCIP_SINGLEPACKET *out, int count)
void	SCIPdecodeSingleBit (const SCIP_SINGLEPACKET *inp, int *out, int count)
void	SCIPencodeDualBit (const int *inp, SCIP_DUALPACKET *out, int count)
void	SCIPdecodeDualBit (const SCIP_DUALPACKET *inp, int *out, int count)

Macro Definition Documentation

SCIP_SINGLEPACKETSIZE

#define SCIP_SINGLEPACKETSIZE   (sizeof(SCIP_SINGLEPACKET)*8)

each entry needs one bit of information

Definition at line 32 of file bitencode.h.

Referenced by SCIPdecodeSingleBit(), and SCIPencodeSingleBit().

SCIP_DUALPACKETSIZE

#define SCIP_DUALPACKETSIZE   (sizeof(SCIP_DUALPACKET)*4)

each entry needs two bits of information

Definition at line 34 of file bitencode.h.

Referenced by SCIPdecodeDualBit(), and SCIPencodeDualBit().

Typedef Documentation

SCIP_SINGLEPACKET

typedef unsigned int SCIP_SINGLEPACKET

storing single bits in packed format

Definition at line 31 of file bitencode.h.

SCIP_DUALPACKET

typedef unsigned int SCIP_DUALPACKET

storing bit pairs in packed format

Definition at line 33 of file bitencode.h.

Function Documentation

SCIPencodeSingleBit()

void SCIPencodeSingleBit	(	const int *	inp,
		SCIP_SINGLEPACKET *	out,
		int	count
	)

encode a single bit vector into packed format

Parameters

inp	unpacked input vector
out	buffer to store the packed vector
count	number of elements

Definition at line 32 of file bitencode.c.

References NULL, and SCIP_SINGLEPACKETSIZE.

SCIPdecodeSingleBit()

void SCIPdecodeSingleBit	(	const SCIP_SINGLEPACKET *	inp,
		int *	out,
		int	count
	)

decode a packed single bit vector into unpacked format

Parameters

inp	packed input vector
out	buffer to store unpacked vector
count	number of elements

Definition at line 122 of file bitencode.c.

References NULL, and SCIP_SINGLEPACKETSIZE.

SCIPencodeDualBit()

void SCIPencodeDualBit	(	const int *	inp,
		SCIP_DUALPACKET *	out,
		int	count
	)

encode a dual bit vector into packed format

Parameters

inp	unpacked input vector
out	buffer to store the packed vector
count	number of elements

Definition at line 229 of file bitencode.c.

References NULL, and SCIP_DUALPACKETSIZE.

Referenced by lpistatePack().

SCIPdecodeDualBit()

void SCIPdecodeDualBit	(	const SCIP_DUALPACKET *	inp,
		int *	out,
		int	count
	)

decode a packed dual bit vector into unpacked format

Parameters

inp	packed input vector
out	buffer to store unpacked vector
count	number of elements

Definition at line 299 of file bitencode.c.

References NULL, and SCIP_DUALPACKETSIZE.

Referenced by lpistateUnpack().