| // 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 "boost/optional.hpp" |
| |
| // |
| // THIS TEST SHOULD FAIL TO COMPILE |
| // |
| void test_deep_constantness() |
| { |
| boost::optional<int> opt ; |
| boost::optional<int> const copt ; |
| |
| *copt = opt ; // Cannot assign to "int const&" |
| } |
| |
| |
