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1//===----------------------------------------------------------------------===//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#ifndef _LIBCPP___CXX03___BIT_POPCOUNT_H10#define _LIBCPP___CXX03___BIT_POPCOUNT_H11 12#include <__cxx03/__bit/rotate.h>13#include <__cxx03/__config>14#include <__cxx03/limits>15 16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)17# pragma GCC system_header18#endif19 20_LIBCPP_PUSH_MACROS21#include <__cxx03/__undef_macros>22 23_LIBCPP_BEGIN_NAMESPACE_STD24 25template <class _Tp>26_LIBCPP_HIDE_FROM_ABI int __libcpp_popcount(_Tp __v) {27 return __builtin_popcountg(__v);28}29 30_LIBCPP_END_NAMESPACE_STD31 32_LIBCPP_POP_MACROS33 34#endif // _LIBCPP___CXX03___BIT_POPCOUNT_H35