mirror of https://github.com/CGAL/cgal
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
// Copyright (c) 2004 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $Source$
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// $Revision$ $Date$
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// $Name$
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//
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// Author(s) : Sylvain Pion
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// CGAL_CFG_CONVERSION_OPERATOR_BUG.C
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// ---------------------------------------------------------------------
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// A short test program to evaluate a C++ compiler.
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// This program is used by cgal_configure.
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// The following documentation will be pasted in the generated configfile.
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// ---------------------------------------------------------------------
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//| The flag CGAL_CFG_CONVERSION_OPERATOR_BUG is set, if a compiler
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//| crashes with some conversion operators. G++ 3.3.0 is affected by
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//| this bug (it hits Darwin severely since it is the system compiler).
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template<class I1, class I2>
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struct iterator_restrict_traits {
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typedef I1 iterator_category;
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};
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template<class T>
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struct scalar_expression {
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typedef T value_type;
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};
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template<class E, class F>
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class vector_scalar_unary:
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public scalar_expression<typename F::result_type> {
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public:
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typedef typename F::result_type value_type;
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typedef typename E::const_iterator::iterator_category iterator_category;
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operator value_type () const {
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return evaluate (iterator_category ());
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}
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};
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template<class E1, class E2, class F>
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class vector_scalar_binary:
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public scalar_expression<typename F::result_type> {
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public:
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typedef typename F::result_type value_type;
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typedef typename iterator_restrict_traits<
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typename E1::const_iterator::iterator_category,
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typename E2::const_iterator::iterator_category>::iterator_category
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iterator_category;
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operator value_type () const {
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return evaluate (iterator_category ());
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}
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};
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int main() {
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return 0;
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}
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