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- // Copyright (C) 2003, Fernando Luis Cacciola Carballal.
- //
- // Use, modification, and distribution is subject to the Boost Software
- // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- //
- // See http://www.boost.org/lib/optional for documentation.
- //
- // You are welcome to contact the author at:
- // fernando_cacciola@hotmail.com
- //
- #include<string>
- #include "boost/optional.hpp"
- struct A {} ;
- struct B {} ;
- //
- // THIS TEST SHOULD FAIL TO COMPILE
- //
- void test_no_unsupported_conversion()
- {
- boost::optional<A> opt1;
- boost::optional<B> opt2;
- opt2 = opt1 ; // Cannot convert from "A" to "B"
- }
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