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SFL Version 2.11 |
#include "sflbits.h" BITS * bits_create (void)
Creates a new bitstring and initialises all bits to zero. Returns a BITS handle which you should use in all further references to the bitstring.
{ BITS *bits; /* Newly-created bitstring */ BITBLOCK *index; /* Newly-created index block */ bits = mem_alloc (sizeof (BITS)); if (bits) { memset (bits, 0, sizeof (BITS)); index = mem_alloc (sizeof (BITBLOCK)); if (index) { /* Set all index fields to 0: bitstring is all zeroes */ memset (index, 0, sizeof (BITBLOCK)); index-> left = 0; index-> right = 0; index-> size = BIT_DATASIZE; bits-> block [0] = index; bits-> block_count = 1; bits-> free_list = 0; /* No blocks in free list */ } else { mem_free (bits); bits = NULL; } } return (bits); }
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