21 lines · cpp
1//===-- Unittests for stdc_first_trailing_zero_ul -------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/CPP/limits.h"10#include "src/stdbit/stdc_first_trailing_zero_ul.h"11#include "test/UnitTest/Test.h"12 13TEST(LlvmLibcStdcFirstTrailingZeroUlTest, ALL) {14 EXPECT_EQ(LIBC_NAMESPACE::stdc_first_trailing_zero_ul(ULONG_MAX), 0U);15}16 17TEST(LlvmLibcStdcFirstTrailingZeroUlTest, ZeroHot) {18 for (unsigned i = 0U; i != ULONG_WIDTH; ++i)19 EXPECT_EQ(LIBC_NAMESPACE::stdc_first_trailing_zero_ul(~(1UL << i)), i + 1);20}21