blob: e0d310ac19b13e7d75915a6bae79452ed1074e12 [file] [log] [blame]
/*
* Copyright 2023 Meta
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/sys/util.h>
#include <zephyr/ztest.h>
static const uint8_t val = LOG2CEIL(42);
static const uint8_t val64 = LOG2CEIL(42 + BIT64(32));
ZTEST(pot, test_LOG2CEIL)
{
zassert_equal(0, LOG2CEIL(LLONG_MIN));
zassert_equal(0, LOG2CEIL(LONG_MIN));
zassert_equal(0, LOG2CEIL(INT_MIN));
zassert_equal(0, LOG2CEIL(-1));
zassert_equal(0, LOG2CEIL(0));
zassert_equal(0, LOG2CEIL(1));
zassert_equal(1, LOG2CEIL(2));
zassert_equal(2, LOG2CEIL(3));
zassert_equal(2, LOG2CEIL(4));
zassert_equal(3, LOG2CEIL(5));
zassert_equal(31, LOG2CEIL(BIT(31)));
zassert_equal(32, LOG2CEIL(BIT(31) + 1));
zassert_equal(32, LOG2CEIL(UINT32_MAX));
zassert_equal(32, LOG2CEIL(BIT64(32)));
zassert_equal(33, LOG2CEIL(BIT64(32) + 1));
zassert_equal(63, LOG2CEIL(BIT64(63) - 1));
zassert_equal(63, LOG2CEIL(BIT64(63)));
zassert_equal(64, LOG2CEIL(BIT64(63) + 1));
zassert_equal(64, LOG2CEIL(UINT64_MAX));
zassert_equal(6, val);
zassert_equal(33, val64);
}