21 lines · cpp
1//===-- Implementation of ffs ---------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/strings/ffs.h"10#include "src/__support/common.h"11#include "src/__support/macros/config.h"12#include "src/__support/math_extras.h"13 14namespace LIBC_NAMESPACE_DECL {15 16LLVM_LIBC_FUNCTION(int, ffs, (int i)) {17 return first_trailing_one(static_cast<unsigned>(i));18}19 20} // namespace LIBC_NAMESPACE_DECL21