1 files changed, 71 insertions, 0 deletions
diff --git a/src/inkgc/gc-alloc.h b/src/inkgc/gc-alloc.h
new file mode 100644
index 0000000..8eaec94
--- /dev/null
+++ b/src/inkgc/gc-alloc.h
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * Inkscape::GC::Alloc - GC-aware STL allocator
+ *//*
+ * Authors:
+ * see git history
+ * MenTaLguY <mental@rydia.net>
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef SEEN_INKSCAPE_GC_ALLOC_H
+#define SEEN_INKSCAPE_GC_ALLOC_H
+
+#include <cstddef>
+#include "inkgc/gc-core.h"
+
+namespace Inkscape {
+
+namespace GC {
+
+template <typename T, CollectionPolicy collect>
+class Alloc {
+public:
+    typedef T value_type;
+    typedef T *pointer;
+    typedef std::size_t size_type;
+
+    template <typename U>
+    struct rebind { typedef Alloc<U, collect> other; };
+
+    Alloc() = default;
+    template <typename U> Alloc(Alloc<U, collect> const &) {}
+
+    pointer allocate(size_type count, void const * =nullptr) {
+        return static_cast<pointer>(::operator new(count * sizeof(T), SCANNED, collect));
+    }
+
+    void deallocate(pointer p, size_type) { ::operator delete(p, GC); }
+};
+
+// allocators with the same collection policy are interchangeable
+
+template <typename T1, typename T2,
+          CollectionPolicy collect1, CollectionPolicy collect2>
+bool operator==(Alloc<T1, collect1> const &, Alloc<T2, collect2> const &) {
+    return collect1 == collect2;
+}
+
+template <typename T1, typename T2,
+          CollectionPolicy collect1, CollectionPolicy collect2>
+bool operator!=(Alloc<T1, collect1> const &, Alloc<T2, collect2> const &) {
+    return collect1 != collect2;
+}
+
+}
+
+}
+
+#endif
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :