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-rw-r--r--include/iprt/nocrt/memory108
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diff --git a/include/iprt/nocrt/memory b/include/iprt/nocrt/memory
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+/** @file
+ * IPRT / No-CRT - Minimal C++ std::memory.
+ */
+
+/*
+ * Copyright (C) 2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program 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, in version 3 of the
+ * License.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef VBOX_INCLUDED_SRC_nocrt_memory
+#define VBOX_INCLUDED_SRC_nocrt_memory
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/nocrt/cstddef>
+#include <iprt/nocrt/new>
+
+namespace std
+{
+ /**
+ * Simple allocator - not C++11 compliant.
+ */
+ template<class a_Type> class allocator
+ {
+ public:
+ typedef a_Type value_type;
+ typedef a_Type const &const_reference;
+ typedef a_Type *pointer;
+ typedef a_Type const *const_pointer;
+ typedef std::size_t size_type;
+ typedef std::ptrdiff_t difference_type;
+
+ public:
+ allocator() RT_NOEXCEPT
+ { }
+
+ allocator(allocator const &a_rThat) RT_NOEXCEPT
+ { RT_NOREF(a_rThat); }
+
+ ~allocator()
+ { }
+
+ a_Type *allocate(size_type a_cItems, const void *a_pvHint = NULL)
+ {
+ RT_NOREF(a_pvHint);
+ Assert(a_cItems <= max_size()); /** @todo throw stuff */
+ return static_cast<pointer>(::operator new(sizeof(value_type) * a_cItems));
+ }
+
+ void deallocate(a_Type *a_paItems, size_type a_cItems)
+ {
+ if (a_paItems && a_cItems > 0)
+ ::operator delete(a_paItems);
+ }
+
+ size_type max_size() const
+ {
+ /* whatever */
+#if ARCH_BITS >= 64
+ return _4G / sizeof(value_type);
+#else
+ return _512M / sizeof(value_type);
+#endif
+ }
+
+ void construct(pointer a_pDst, const_reference a_rSrc)
+ {
+ ::new (static_cast<void *>(a_pDst)) a_Type(a_rSrc);
+ }
+
+ void destroy(pointer a_pDst)
+ {
+ a_pDst->~value_type();
+ }
+ };
+
+ /** @todo make_unique and unique */
+}
+
+#endif /* !VBOX_INCLUDED_SRC_nocrt_memory */
+