1//===-- Implementation of stdc_leading_zeros_ull --------------------------===//
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_leading_zeros_ull.h"
10
11#include "src/__support/CPP/bit.h"
12#include "src/__support/common.h"
13
14namespace LIBC_NAMESPACE {
15
16LLVM_LIBC_FUNCTION(unsigned, stdc_leading_zeros_ull,
17 (unsigned long long value)) {
18 return static_cast<unsigned>(cpp::countl_zero(value));
19}
20
21} // namespace LIBC_NAMESPACE
22

source code of libc/src/stdbit/stdc_leading_zeros_ull.cpp