bits_create

SFL
Version 2.11

`bits_create`

#include "sflbits.h"
BITS *
bits_create (void)

Synopsis

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.

Source Code - (sflbits.c)

{
    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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