1 //===-- Unittests for stdc_first_trailing_zero_ull ------------------------===// 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/__support/CPP/limits.h" 10 #include "src/stdbit/stdc_first_trailing_zero_ull.h" 11 #include "test/UnitTest/Test.h" 12 TEST(LlvmLibcStdcFirstTrailingZeroUllTest,ALL)13TEST(LlvmLibcStdcFirstTrailingZeroUllTest, ALL) { 14 EXPECT_EQ(LIBC_NAMESPACE::stdc_first_trailing_zero_ull(ULLONG_MAX), 0U); 15 } 16 TEST(LlvmLibcStdcFirstTrailingZeroUllTest,ZeroHot)17TEST(LlvmLibcStdcFirstTrailingZeroUllTest, ZeroHot) { 18 for (unsigned i = 0U; i != ULLONG_WIDTH; ++i) 19 EXPECT_EQ(LIBC_NAMESPACE::stdc_first_trailing_zero_ull(~(1ULL << i)), 20 i + 1); 21 } 22