Function test_fls

dpdk/app/test/test_common.c:291–341

}

static int
test_fls(void)
{
	struct fls_test_vector {
		uint32_t arg;
		int rc;
	};
	int expected, rc;
	uint32_t i, arg;

	const struct fls_test_vector test[] = {
		{0x0, 0},
		{0x1, 1},
		{0x4000, 15},
		{0x80000000, 32},
	};

	for (i = 0; i < RTE_DIM(test); i++) {
		uint64_t arg64;

		arg = test[i].arg;
		rc = rte_fls_u32(arg);
		expected = test[i].rc;
		if (rc != expected) {
			printf("Wrong rte_fls_u32(0x%x) rc=%d, expected=%d\n",
				arg, rc, expected);
			return TEST_FAILED;
		}
		/* 64-bit version */
		arg = test[i].arg;
		rc = rte_fls_u64(arg);
		expected = test[i].rc;
		if (rc != expected) {
			printf("Wrong rte_fls_u64(0x%x) rc=%d, expected=%d\n",
				arg, rc, expected);
			return TEST_FAILED;
		}
		/* 64-bit version shifted by 32 bits */
		arg64 = (uint64_t)test[i].arg << 32;
		rc = rte_fls_u64(arg64);
		/* don't shift zero */
		expected = test[i].rc == 0 ? 0 : test[i].rc + 32;
		if (rc != expected) {
			printf("Wrong rte_fls_u64(0x%" PRIx64 ") rc=%d, expected=%d\n",
				arg64, rc, expected);
			return TEST_FAILED;
		}
	}

	return 0;
}

static int
test_common(void)