helpers.h

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/*
 * 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
/*
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  End:
*/
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