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