1 //===-- Unittests for stdc_has_single_bit_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_has_single_bit_ull.h" 11 #include "test/UnitTest/Test.h" 12 TEST(LlvmLibcStdcHasSingleBitUllTest,Zero)13TEST(LlvmLibcStdcHasSingleBitUllTest, Zero) { 14 EXPECT_EQ(LIBC_NAMESPACE::stdc_has_single_bit_ull(0U), false); 15 } 16 TEST(LlvmLibcStdcHasSingleBitUllTest,OneHot)17TEST(LlvmLibcStdcHasSingleBitUllTest, OneHot) { 18 for (unsigned i = 0U; i != ULLONG_WIDTH; ++i) 19 EXPECT_EQ(LIBC_NAMESPACE::stdc_has_single_bit_ull(1ULL << i), true); 20 } 21