26 lines · cpp
1//===-- Unittests for stdc_bit_floor_ui -----------------------------------===//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_bit_floor_ui.h"11#include "test/UnitTest/Test.h"12 13TEST(LlvmLibcStdcBitfloorUiTest, Zero) {14 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_floor_ui(0U), 0U);15}16 17TEST(LlvmLibcStdcBitfloorUiTest, Ones) {18 for (unsigned i = 0U; i != LIBC_NAMESPACE::cpp::numeric_limits<int>::digits;19 ++i)20 EXPECT_EQ(21 LIBC_NAMESPACE::stdc_bit_floor_ui(22 LIBC_NAMESPACE::cpp::numeric_limits<unsigned int>::max() >> i),23 1U << (LIBC_NAMESPACE::cpp::numeric_limits<unsigned int>::digits - i -24 1));25}26