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Bitset

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Imbus 2025-12-27 02:08:14 +01:00
parent 7012521d08
commit 7ffb1f122e
1 changed files with 15 additions and 0 deletions
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bitset2.c Normal file
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#include <stddef.h>
#include <stdint.h>
#define BITSET_WORD_BITS (sizeof(bitset_word_t) * 8U)
#define BITSET_WORD(idx) ((uintptr_t *)(bits))[(idx) / BITSET_WORD_BITS]
#define BITSET_MASK(idx) ((uintptr_t)1 << ((idx) % BITSET_WORD_BITS))
#define BITSET_SET(bits, idx) (BITSET_WORD(idx) |= BITSET_MASK(idx))
#define BITSET_CLEAR(bits, idx) (BITSET_WORD(idx) &= ~BITSET_MASK(idx))
#define BITSET_FLIP(bits, idx) (BITSET_WORD(idx) ^= BITSET_MASK(idx))
#define BITSET_TEST(bits, idx) (!!((BITSET_WORD(idx) & BITSET_MASK(idx)))) /* forces 0/1 */
// #define BITSET_PUT(bits, idx, v) do { if (v) BITSET_SET(bits,idx); else BITSET_CLEAR(bits,idx); } while(0)
int main(void) {
return 0;
}