1 files changed, 59 insertions, 0 deletions
diff --git a/src/py2geom/helpers.h b/src/py2geom/helpers.h
new file mode 100644
index 0000000..4502fba
--- /dev/null
+++ b/src/py2geom/helpers.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2006, 2007 Aaron Spike <aaron@ekips.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ */
+
+#ifndef SEEN_PY2GEOM_HELPERS_H
+#define SEEN_PY2GEOM_HELPERS_H
+
+#include <boost/python.hpp>
+
+template <typename T, typename R, unsigned D>
+R python_getitem(T const& p, int index)
+{
+    unsigned i = index;
+    if (index < 0)
+    {
+        i = index = D + index;
+    }
+    if ((index < 0) || (i > (D - 1))) {
+        PyErr_SetString(PyExc_IndexError, "index out of range");
+        boost::python::throw_error_already_set();
+    }
+    return p[i];
+}
+
+#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 :