22 lines · cpp
1//===-- Implementation of stdc_trailing_ones_ul ---------------------------===//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/stdbit/stdc_trailing_ones_ul.h"10 11#include "src/__support/CPP/bit.h"12#include "src/__support/common.h"13#include "src/__support/macros/config.h"14 15namespace LIBC_NAMESPACE_DECL {16 17LLVM_LIBC_FUNCTION(unsigned, stdc_trailing_ones_ul, (unsigned long value)) {18 return static_cast<unsigned>(cpp::countr_one(value));19}20 21} // namespace LIBC_NAMESPACE_DECL22