21 lines · cpp
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-exception6//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 13TEST(LlvmLibcStdcHasSingleBitUllTest, Zero) {14 EXPECT_EQ(LIBC_NAMESPACE::stdc_has_single_bit_ull(0U), false);15}16 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