|  | //===-- Implementation of stdc_leading_zeros_ul ---------------------------===// | 
|  | // | 
|  | // 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/stdbit/stdc_leading_zeros_ul.h" | 
|  |  | 
|  | #include "src/__support/CPP/bit.h" | 
|  | #include "src/__support/common.h" | 
|  | #include "src/__support/macros/config.h" | 
|  |  | 
|  | namespace LIBC_NAMESPACE_DECL { | 
|  |  | 
|  | LLVM_LIBC_FUNCTION(unsigned, stdc_leading_zeros_ul, (unsigned long value)) { | 
|  | return static_cast<unsigned>(cpp::countl_zero(value)); | 
|  | } | 
|  |  | 
|  | } // namespace LIBC_NAMESPACE_DECL |