================ @@ -0,0 +1,102 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP___INOUT_PTR_H +#define _LIBCPP___INOUT_PTR_H + +#include <__config> +#include <__memory/addressof.h> +#include <__memory/pointer_traits.h> +#include <__memory/shared_ptr.h> +#include <__memory/unique_ptr.h> +#include <__type_traits/is_same.h> +#include <__type_traits/is_specialization.h> +#include <__type_traits/is_void.h> +#include <tuple> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +#if _LIBCPP_STD_VER >= 23 + +template <class _Smart, class _Pointer, class... _Args> +class _LIBCPP_TEMPLATE_VIS inout_ptr_t { + static_assert(!__is_specialization_v<_Smart, shared_ptr>, "std::shared_ptr<> is not supported"); + +public: + _LIBCPP_HIDE_FROM_ABI explicit inout_ptr_t(_Smart& __s, _Args... __args) + : __s_(__s), __a_(std::forward<_Args>(__args)...), __p_([&__s] { + if constexpr (is_pointer_v<_Smart>) { + return __s; + } else { + return __s.get(); + } + }()) { + if constexpr (requires { __s.release(); }) { + __s.release(); + } else { + __s = _Smart(); + } + } + + _LIBCPP_HIDE_FROM_ABI inout_ptr_t(const inout_ptr_t&) = delete; + + _LIBCPP_HIDE_FROM_ABI ~inout_ptr_t() { + if constexpr (!is_pointer_v<_Smart>) { ---------------- ldionne wrote:
Does this `if constexpr` have a test? https://github.com/llvm/llvm-project/pull/73618 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
