static inline __attribute__()

in include/jhash.h [85:114]

• 23 lines of code
• 6 McCabe index (conditional complexity)

static inline __attribute__((pure)) uint32_t jhash2(const uint32_t *k,
		uint32_t length, uint32_t initval)
{
	uint32_t a, b, c;

	/* Set up the internal state */
	a = b = c = JHASH_INITVAL + (length<<2) + initval;

	/* Handle most of the key */
	while (length > 3) {
		a += k[0];
		b += k[1];
		c += k[2];
		__jhash_mix(a, b, c);
		length -= 3;
		k += 3;
	}

	/* Handle the last 3 uint32_t's: all the case statements fall through */
	switch (length) {
	case 3: c += k[2];	/* fall through */
	case 2: b += k[1];	/* fall through */
	case 1: a += k[0];
		__jhash_final(a, b, c);
	case 0:	/* Nothing left to add */
		break;
	}

	return c;
}