32 lines · cpp
1//===-- Unittests for stdc_bit_ceil_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_bit_ceil_ull.h"11#include "test/UnitTest/Test.h"12 13TEST(LlvmLibcStdcBitceilUllTest, Zero) {14 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ull(0ULL), 1ULL);15}16 17TEST(LlvmLibcStdcBitceilUllTest, Ones) {18 for (unsigned i = 0U; i != ULLONG_WIDTH; ++i)19 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ull(1ULL << i), 1ULL << i);20}21 22TEST(LlvmLibcStdcBitceilUllTest, OneLessThanPowsTwo) {23 for (unsigned i = 2U; i != ULLONG_WIDTH; ++i)24 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ull((1ULL << i) - 1), 1ULL << i);25}26 27TEST(LlvmLibcStdcBitceilUllTest, OneMoreThanPowsTwo) {28 for (unsigned i = 1U; i != ULLONG_WIDTH - 1; ++i)29 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ull((1ULL << i) + 1),30 1ULL << (i + 1));31}32