31 lines · cpp
1//===-- Unittests for stdc_bit_ceil_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_ceil_ui.h"11#include "test/UnitTest/Test.h"12 13TEST(LlvmLibcStdcBitceilUiTest, Zero) {14 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ui(0U), 1U);15}16 17TEST(LlvmLibcStdcBitceilUiTest, Ones) {18 for (unsigned i = 0U; i != UINT_WIDTH; ++i)19 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ui(1U << i), 1U << i);20}21 22TEST(LlvmLibcStdcBitceilUiTest, OneLessThanPowsTwo) {23 for (unsigned i = 2U; i != UINT_WIDTH; ++i)24 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ui((1U << i) - 1), 1U << i);25}26 27TEST(LlvmLibcStdcBitceilUiTest, OneMoreThanPowsTwo) {28 for (unsigned i = 1U; i != UINT_WIDTH - 1; ++i)29 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ui((1U << i) + 1), 1U << (i + 1));30}31