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
TEST(LlvmLibcStdcBitceilUcTest,Zero)13 TEST(LlvmLibcStdcBitceilUcTest, Zero) {
14 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc(0U),
15 static_cast<unsigned char>(1));
16 }
17
TEST(LlvmLibcStdcBitceilUcTest,Ones)18 TEST(LlvmLibcStdcBitceilUcTest, Ones) {
19 for (unsigned i = 0U; i != UCHAR_WIDTH; ++i)
20 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc(1U << i),
21 static_cast<unsigned char>(1U << i));
22 }
23
TEST(LlvmLibcStdcBitceilUcTest,OneLessThanPowsTwo)24 TEST(LlvmLibcStdcBitceilUcTest, OneLessThanPowsTwo) {
25 for (unsigned i = 2U; i != UCHAR_WIDTH; ++i)
26 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc((1U << i) - 1),
27 static_cast<unsigned char>(1U << i));
28 }
29
TEST(LlvmLibcStdcBitceilUcTest,OneMoreThanPowsTwo)30 TEST(LlvmLibcStdcBitceilUcTest, OneMoreThanPowsTwo) {
31 for (unsigned i = 1U; i != UCHAR_WIDTH - 1; ++i)
32 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_ceil_uc((1U << i) + 1),
33 static_cast<unsigned char>(1U << (i + 1)));
34 }
35