50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
#ifndef lint
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static char rcsid[] = "$Id: malloc-test.c,v 1.2 1993/08/02 17:24:21 mycroft Exp $";
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#endif /* not lint */
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typedef struct {
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unsigned *bits;
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unsigned size;
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} bits_list_type;
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#define BYTEWIDTH 8
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#define NULL 0
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#define BITS_BLOCK_SIZE (sizeof (unsigned) * BYTEWIDTH)
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#define BITS_BLOCK(position) ((position) / BITS_BLOCK_SIZE)
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#define BITS_MASK(position) (1 << ((position) % BITS_BLOCK_SIZE))
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static unsigned
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init_bits_list (bits_list_ptr)
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bits_list_type *bits_list_ptr;
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{
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bits_list_ptr->bits = NULL;
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bits_list_ptr->bits = (unsigned *) malloc (sizeof (unsigned));
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if (bits_list_ptr->bits == NULL)
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return 0;
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bits_list_ptr->bits[0] = (unsigned)0;
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bits_list_ptr->size = BITS_BLOCK_SIZE;
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return 1;
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}
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main()
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{
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bits_list_type dummy;
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bits_list_type dummy_1;
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bits_list_type dummy_2;
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bits_list_type dummy_3;
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init_bits_list (&dummy);
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printf("init 1\n");
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init_bits_list (&dummy_1);
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printf("init 2\n");
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init_bits_list (&dummy_2);
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printf("init 3\n");
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init_bits_list (&dummy_3);
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printf("init 4\n");
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}
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