Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 108 insertions, 0 deletions

diff --git a/include/iprt/nocrt/memory b/include/iprt/nocrt/memory
new file mode 100644
index 00000000..6399c414
--- /dev/null
+++ b/include/iprt/nocrt/memory
@@ -0,0 +1,108 @@
+/** @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 */
+