| //===-- Unittests for ffs -------------------------------------------------===// | |
| // | |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |
| // See https://llvm.org/LICENSE.txt for license information. | |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |
| // | |
| //===----------------------------------------------------------------------===// | |
| #include "src/strings/ffs.h" | |
| #include "src/__support/macros/config.h" | |
| #include "test/UnitTest/Test.h" | |
| namespace LIBC_NAMESPACE_DECL { | |
| TEST(LlvmLibcFfsTest, SimpleFfs) { | |
| ASSERT_EQ(ffs(0x00000000), 0); | |
| ASSERT_EQ(ffs(0x00000001), 1); | |
| ASSERT_EQ(ffs(0x00000020), 6); | |
| ASSERT_EQ(ffs(0x00000400), 11); | |
| ASSERT_EQ(ffs(0x00008000), 16); | |
| ASSERT_EQ(ffs(0x00010000), 17); | |
| ASSERT_EQ(ffs(0x00200000), 22); | |
| ASSERT_EQ(ffs(0x04000000), 27); | |
| ASSERT_EQ(ffs(0x80000000), 32); | |
| ASSERT_EQ(ffs(0xfbe71), 1); | |
| ASSERT_EQ(ffs(0xfbe70), 5); | |
| ASSERT_EQ(ffs(0x10), 5); | |
| ASSERT_EQ(ffs(0x100), 9); | |
| } | |
| } // namespace LIBC_NAMESPACE_DECL |