bitmask.h File Reference

#include "config.h"
#include <string.h>
#include "gromacs/utility/basedefinitions.h"

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Description

Declares gmx_bitmask_t and associated functions.

Author

Roland Schulz rolan.nosp@m.d@ut.nosp@m.k.edu

Macros
#define	BITMASK_SIZE   GMX_OPENMP_MAX_THREADS
	Size of bitmask. Has to be 32 or multiple of 64.

Typedefs
typedef gmx_uint64_t	gmx_bitmask_t
	bitmask type

Functions
static void	bitmask_clear (gmx_bitmask_t *m)
	Initialize all bits to 0.
static void	bitmask_set_bit (gmx_bitmask_t *m, int b)
	Set bit at position b to 1.
static void	bitmask_init_bit (gmx_bitmask_t *m, int b)
	Initialize all bits: bit b to 1, others to 0.
static void	bitmask_init_low_bits (gmx_bitmask_t *m, int b)
	Initialize all bits: all bits below b to 1, others to 0.
static gmx_bool	bitmask_is_set (gmx_bitmask_t m, int b)
	Test if bit b is set.
static gmx_bool	bitmask_is_disjoint (gmx_bitmask_t a, gmx_bitmask_t b)
	Test if both bitmasks have no common bits enabled.
static gmx_bool	bitmask_is_equal (gmx_bitmask_t a, gmx_bitmask_t b)
	Test if both bitmasks are equal.
static gmx_bool	bitmask_is_zero (gmx_bitmask_t m)
	Test if bitmask has no enabled bits.
static void	bitmask_union (gmx_bitmask_t *a, gmx_bitmask_t b)
	Set all bits enabled in either mask and write into a.