b8ba266820
When cross compiling the libc-stdbit-tests, the existing tests trigger numerous instances of -Wimplicit-int-conversion. The truncation of these implicit promotions is intentional.
38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
//===-- Unittests for stdc_bit_ceil_uc ------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/__support/CPP/limits.h"
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#include "src/stdbit/stdc_bit_ceil_uc.h"
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#include "test/UnitTest/Test.h"
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TEST(LlvmLibcStdcBitceilUcTest, Zero) {
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EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc(0U),
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static_cast<unsigned char>(1));
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}
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TEST(LlvmLibcStdcBitceilUcTest, Ones) {
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for (unsigned i = 0U; i != UCHAR_WIDTH; ++i)
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EXPECT_EQ(
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LIBC_NAMESPACE::stdc_bit_ceil_uc(static_cast<unsigned char>(1U << i)),
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static_cast<unsigned char>(1U << i));
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}
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TEST(LlvmLibcStdcBitceilUcTest, OneLessThanPowsTwo) {
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for (unsigned i = 2U; i != UCHAR_WIDTH; ++i)
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EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc(
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static_cast<unsigned char>((1U << i) - 1)),
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static_cast<unsigned char>(1U << i));
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}
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TEST(LlvmLibcStdcBitceilUcTest, OneMoreThanPowsTwo) {
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for (unsigned i = 1U; i != UCHAR_WIDTH - 1; ++i)
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EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc(
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static_cast<unsigned char>((1U << i) + 1)),
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static_cast<unsigned char>(1U << (i + 1)));
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}
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