1 //===-- Implementation of stdc_trailing_zeros_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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/stdbit/stdc_trailing_zeros_ul.h" 10 11 #include "src/__support/CPP/bit.h" 12 #include "src/__support/common.h" 13 14 namespace LIBC_NAMESPACE { 15 16 LLVM_LIBC_FUNCTION(unsigned, stdc_trailing_zeros_ul, (unsigned long value)) { 17 return static_cast<unsigned>(cpp::countr_zero(value)); 18 } 19 20 } // namespace LIBC_NAMESPACE 21