| 1 | //===-- Unittests for stdc_bit_ceil_us ------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/__support/CPP/limits.h" |
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| 10 | #include "src/stdbit/stdc_bit_ceil_us.h" |
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| 11 | #include "test/UnitTest/Test.h" |
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| 12 | |
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| 13 | TEST(LlvmLibcStdcBitceilUsTest, Zero) { |
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| 14 | EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_us(0U), |
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| 15 | static_cast<unsigned short>(1)); |
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| 16 | } |
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| 17 | |
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| 18 | TEST(LlvmLibcStdcBitceilUsTest, Ones) { |
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| 19 | for (unsigned i = 0U; i != USHRT_WIDTH; ++i) |
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| 20 | EXPECT_EQ( |
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| 21 | LIBC_NAMESPACE::stdc_bit_ceil_us(static_cast<unsigned short>(1U << i)), |
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| 22 | static_cast<unsigned short>(1U << i)); |
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| 23 | } |
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| 24 | |
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| 25 | TEST(LlvmLibcStdcBitceilUsTest, OneLessThanPowsTwo) { |
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| 26 | for (unsigned i = 2U; i != USHRT_WIDTH; ++i) |
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| 27 | EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_us( |
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| 28 | static_cast<unsigned short>((1U << i) - 1)), |
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| 29 | static_cast<unsigned short>(1U << i)); |
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| 30 | } |
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| 31 | |
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| 32 | TEST(LlvmLibcStdcBitceilUsTest, OneMoreThanPowsTwo) { |
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| 33 | for (unsigned i = 1U; i != USHRT_WIDTH - 1; ++i) |
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| 34 | EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_us( |
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| 35 | static_cast<unsigned short>((1U << i) + 1)), |
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| 36 | static_cast<unsigned short>(1U << (i + 1))); |
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| 37 | } |
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| 38 | |
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