Function oidhash

hash.h:444–453

* Converts a cryptographic hash (e.g. SHA-1) into an int-sized hash code * for use in hash tables. Cryptographic hashes are supposed to have * uniform distribution, so in contrast to `memhash()`, this just copies * the first `sizeof(int)` bytes without shuffling any bits. Note that * the results will be different on big-endian and little-endian * platforms, so they should not be stored or tra

 * platforms, so they should not be stored or transferred over the net.
 */
static inline unsigned int oidhash(const struct object_id *oid)
{
	/*
	 * Equivalent to 'return *(unsigned int *)oid->hash;', but safe on
	 * platforms that don't support unaligned reads.
	 */
	unsigned int hash;
	memcpy(&hash, oid->hash, sizeof(hash));
	return hash;
}

static inline int is_null_oid(const struct object_id *oid)
{