static uint64_t

siphash24(uint64_t k0, uint64_t k1, const void *src, Py_ssize_t src_sz) {

uint64_t b = (uint64_t)src_sz << 56;

const uint64_t *in = (uint64_t*)src;

const uint8_t *in = (uint8_t*)src;

uint64_t v0 = k0 ^ 0x736f6d6570736575ULL;

uint64_t v1 = k1 ^ 0x646f72616e646f6dULL;

uint64_t t;

uint8_t *pt;

uint8_t *m;

while (src_sz >= 8) {

uint64_t mi = _le64toh(*in);

in += 1;

src_sz -= 8;

uint64_t mi;

memcpy(&mi, in, sizeof(mi));

mi = _le64toh(mi);

in += sizeof(mi);

src_sz -= sizeof(mi);

v3 ^= mi;

DOUBLE_ROUND(v0,v1,v2,v3);

v0 ^= mi;

}

t = 0;

pt = (uint8_t *)&t;

m = (uint8_t *)in;

switch (src_sz) {

case 7: pt[6] = m[6]; /* fall through */

case 6: pt[5] = m[5]; /* fall through */

case 5: pt[4] = m[4]; /* fall through */

case 4: memcpy(pt, m, sizeof(uint32_t)); break;

case 3: pt[2] = m[2]; /* fall through */

case 2: pt[1] = m[1]; /* fall through */

case 1: pt[0] = m[0]; /* fall through */

case 7: pt[6] = in[6]; /* fall through */

case 6: pt[5] = in[5]; /* fall through */

case 5: pt[4] = in[4]; /* fall through */

case 4: memcpy(pt, in, sizeof(uint32_t)); break;

case 3: pt[2] = in[2]; /* fall through */

case 2: pt[1] = in[1]; /* fall through */

case 1: pt[0] = in[0]; /* fall through */

}

b |= _le64toh(t);