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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___UTILITY_AS_LVALUE_H11#define _LIBCPP___UTILITY_AS_LVALUE_H12 13#include <__config>14 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)16# pragma GCC system_header17#endif18 19_LIBCPP_PUSH_MACROS20#include <__undef_macros>21 22_LIBCPP_BEGIN_NAMESPACE_STD23 24#ifndef _LIBCPP_CXX03_LANG25 26template <class _Tp>27_LIBCPP_HIDE_FROM_ABI constexpr _Tp& __as_lvalue(_LIBCPP_LIFETIMEBOUND _Tp&& __t) {28 return static_cast<_Tp&>(__t);29}30 31#endif // !_LIBCPP_CXX03_LANG32 33_LIBCPP_END_NAMESPACE_STD34 35_LIBCPP_POP_MACROS36 37#endif // _LIBCPP___UTILITY_AS_LVALUE_H38