concept_check/test/old_concept_class_fail.cpp
2016-07-01 08:47:30 +01:00

29 lines
695 B
C++

// (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;
}