32 lines
520 B
C
32 lines
520 B
C
#include <bitset.h>
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#include <macros.h>
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int is_bit_set(uint8_t *set, size_t n)
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{
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uint8_t *word, mask;
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word = set + n / BIT_SIZE(*set);
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mask = (1 << (n % BIT_SIZE(*set)));
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return (*word & mask) ? 1 : 0;
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}
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void set_bit(uint8_t *set, size_t n)
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{
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uint8_t *word, mask;
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word = set + n / BIT_SIZE(*set);
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mask = (1 << (n % BIT_SIZE(*set)));
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*word |= mask;
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}
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void clear_bit(uint8_t *set, size_t n)
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{
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uint8_t *word, mask;
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word = set + n / BIT_SIZE(*set);
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mask = (1 << (n % BIT_SIZE(*set)));
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*word &= ~mask;
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}
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