| // (C) Copyright Jeremy Siek, David Abrahams 2000-2006. |
| // Distributed under 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) |
| // |
| // Change Log: |
| // 20 Jan 2001 - Added warning suppression (David Abrahams) |
| |
| #include "old_concepts.hpp" |
| |
| // This file verifies that concepts written the old way still catch |
| // errors in class context. This is not expected to work on compilers |
| // without SFINAE support. |
| |
| struct foo { }; |
| |
| class class_requires_test |
| { |
| BOOST_CLASS_REQUIRE(foo, old, EqualityComparableConcept); |
| }; |
| |
| int |
| main() |
| { |
| class_requires_test x; |
| (void)x; // suppress unused variable warning |
| return 0; |
| } |