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//===-- 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
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