| 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-exception |
| 6 | // |
| 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 | |
| 13 | TEST(LlvmLibcStdcBitceilUiTest, Zero) { |
| 14 | EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_ui(0U), 1U); |
| 15 | } |
| 16 | |
| 17 | TEST(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 | |
| 22 | TEST(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 | |
| 27 | TEST(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 |