38 lines · cpp
1//===-- Unittests for stdc_bit_ceil_us ------------------------------------===//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_us.h"11#include "test/UnitTest/Test.h"12 13TEST(LlvmLibcStdcBitceilUsTest, Zero) {14 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_us(0U),15 static_cast<unsigned short>(1));16}17 18TEST(LlvmLibcStdcBitceilUsTest, Ones) {19 for (unsigned i = 0U; i != USHRT_WIDTH; ++i)20 EXPECT_EQ(21 LIBC_NAMESPACE::stdc_bit_ceil_us(static_cast<unsigned short>(1U << i)),22 static_cast<unsigned short>(1U << i));23}24 25TEST(LlvmLibcStdcBitceilUsTest, OneLessThanPowsTwo) {26 for (unsigned i = 2U; i != USHRT_WIDTH; ++i)27 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_us(28 static_cast<unsigned short>((1U << i) - 1)),29 static_cast<unsigned short>(1U << i));30}31 32TEST(LlvmLibcStdcBitceilUsTest, OneMoreThanPowsTwo) {33 for (unsigned i = 1U; i != USHRT_WIDTH - 1; ++i)34 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_us(35 static_cast<unsigned short>((1U << i) + 1)),36 static_cast<unsigned short>(1U << (i + 1)));37}38