aboutsummaryrefslogtreecommitdiff
path: root/libc/src/stdbit/stdc_leading_zeros_us.cpp
blob: 00ac7c3e1e27756a13bd8dc6ec1fe9f7bb5b9dfb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
//===-- Implementation of stdc_leading_zeros_us ---------------------------===//
//
// 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_us.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_us, (unsigned short value)) {
  return static_cast<unsigned>(cpp::countl_zero(value));
}

} // namespace LIBC_NAMESPACE_DECL