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This commit is contained in:
Justine Tunney
2020-12-01 03:43:40 -08:00
parent 3e4fd4b0ad
commit e44a0cf6f8
256 changed files with 23100 additions and 2294 deletions
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15
libc/str/knuthmultiplicativehash.internal.h Normal file
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#ifndef COSMOPOLITAN_LIBC_STR_KNUTHMULTIPLICATIVEHASH_H_
#define COSMOPOLITAN_LIBC_STR_KNUTHMULTIPLICATIVEHASH_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
forceinline uint32_t KnuthMultiplicativeHash32(const void *buf, size_t size) {
size_t i;
uint32_t h;
const uint32_t kPhiPrime = 0x9e3779b1;
const unsigned char *p = (const unsigned char *)buf;
for (h = i = 0; i < size; i++) h = (p[i] + h) * kPhiPrime;
return h;
}
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_STR_KNUTHMULTIPLICATIVEHASH_H_ */