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allocate 256 bits, not 256 bytes, for a charset

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This commit is contained in:
Sven M. Hallberg 2015-09-25 16:48:32 +02:00
parent c770fbab1b
commit f3011f8263
1 changed files with 6 additions and 6 deletions
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12
src/internal.h
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@ -155,20 +155,20 @@ static inline void h_sarray_clear(HSArray *arr) {
typedef unsigned int *HCharset;
static inline HCharset new_charset(HAllocator* mm__) {
HCharset cs = h_new(unsigned int, 256 / sizeof(unsigned int));
memset(cs, 0, 256);
HCharset cs = h_new(unsigned int, 256 / (sizeof(unsigned int) * 8));
memset(cs, 0, 32); // 32 bytes = 256 bits
return cs;
}
static inline int charset_isset(HCharset cs, uint8_t pos) {
return !!(cs[pos / sizeof(*cs)] & (1 << (pos % sizeof(*cs))));
return !!(cs[pos / (sizeof(*cs)*8)] & (1 << (pos % (sizeof(*cs)*8))));
}
static inline void charset_set(HCharset cs, uint8_t pos, int val) {
cs[pos / sizeof(*cs)] =
cs[pos / (sizeof(*cs)*8)] =
val
? cs[pos / sizeof(*cs)] | (1 << (pos % sizeof(*cs)))
: cs[pos / sizeof(*cs)] & ~(1 << (pos % sizeof(*cs)));
? cs[pos / (sizeof(*cs)*8)] | (1 << (pos % (sizeof(*cs)*8)))
: cs[pos / (sizeof(*cs)*8)] & ~(1 << (pos % (sizeof(*cs)*8)));
}
typedef unsigned int HHashValue;