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// <memory> -*- C++ -*-
// Copyright (C) 2001-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/*
* Copyright (c) 1997-1999
* Silicon Graphics Computer Systems, Inc.
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Silicon Graphics makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
*/
/** @file include/memory
* This is a Standard C++ Library header.
* @ingroup memory
*/
#ifndef _GLIBCXX_MEMORY
#define _GLIBCXX_MEMORY 1
#pragma GCC system_header
/**
* @defgroup memory Memory
* @ingroup utilities
*
* Components for memory allocation, deallocation, and management.
*/
/**
* @defgroup pointer_abstractions Pointer Abstractions
* @ingroup memory
*
* Smart pointers, etc.
*/
#include <bits/memoryfwd.h>
#if _GLIBCXX_HOSTED
# include <bits/allocator.h>
# include <bits/stl_tempbuf.h>
#endif
#include <bits/stl_construct.h>
#include <bits/stl_uninitialized.h>
#include <bits/stl_raw_storage_iter.h>
#if __cplusplus >= 201103L
# include <type_traits>
# include <bits/align.h>
# include <bits/uses_allocator.h>
# include <bits/alloc_traits.h>
# include <debug/debug.h>
# include <bits/unique_ptr.h>
# if _GLIBCXX_HOSTED
# include <bits/shared_ptr.h>
# include <bits/shared_ptr_atomic.h>
# endif
#endif
#if __cplusplus < 201103L || _GLIBCXX_USE_DEPRECATED
# include <backward/auto_ptr.h>
#endif
#if __cplusplus > 201703L
# include <bits/ranges_uninitialized.h>
# include <bits/uses_allocator_args.h>
#endif
/* As a hack, we declare __cpp_lib_atomic_value_initialization here even though
we don't include the bit that actually declares it, for consistency. */
#if !defined(__cpp_lib_atomic_value_initialization) && __cplusplus >= 202002L
# define __cpp_lib_atomic_value_initialization 201911L
#endif
#if __cplusplus >= 201103L && __cplusplus <= 202002L && _GLIBCXX_HOSTED
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/** @defgroup ptr_safety Pointer Safety and Garbage Collection
* @ingroup memory
*
* Utilities to assist with garbage collection in an implementation
* that supports <em>strict pointer safety</em>.
* This implementation only supports <em>relaxed pointer safety</em>
* and so these functions have no effect.
*
* C++11 20.6.4 [util.dynamic.safety], Pointer safety
*
* @{
*/
/// Constants representing the different types of pointer safety.
enum class pointer_safety { relaxed, preferred, strict };
/// Inform a garbage collector that an object is still in use.
inline void
declare_reachable(void*) { }
/// Unregister an object previously registered with declare_reachable.
template <typename _Tp>
inline _Tp*
undeclare_reachable(_Tp* __p) { return __p; }
/// Inform a garbage collector that a region of memory need not be traced.
inline void
declare_no_pointers(char*, size_t) { }
/// Unregister a range previously registered with declare_no_pointers.
inline void
undeclare_no_pointers(char*, size_t) { }
/// The type of pointer safety supported by the implementation.
inline pointer_safety
get_pointer_safety() noexcept { return pointer_safety::relaxed; }
/// @}
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
#endif // C++11 to C++20
#if __cplusplus >= 201703L && _GLIBCXX_HOSTED
// Parallel STL algorithms
# if _PSTL_EXECUTION_POLICIES_DEFINED
// If <execution> has already been included, pull in implementations
# include <pstl/glue_memory_impl.h>
# else
// Otherwise just pull in forward declarations
# include <pstl/glue_memory_defs.h>
# endif
// Feature test macro for parallel algorithms
# define __cpp_lib_parallel_algorithm 201603L
#endif // C++17
#endif /* _GLIBCXX_MEMORY */
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