| //===-- 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 |
