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// (C) Copyright Jeremy Siek 2000.
// 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)
#include <boost/concept_check.hpp>
/*
This file verifies that the BOOST_CLASS_REQUIRE macro of the Boost
Concept Checking Library does not cause errors when it is not suppose
to.
*/
struct foo { bool operator()(int) { return true; } };
struct bar { bool operator()(int, char) { return true; } };
class class_requires_test
{
BOOST_CONCEPT_ASSERT((boost::EqualityComparable<int>));
typedef int* int_ptr; typedef const int* const_int_ptr;
BOOST_CONCEPT_ASSERT((boost::EqualOp<int_ptr,const_int_ptr>));
BOOST_CONCEPT_ASSERT((boost::UnaryFunction<foo,bool,int>));
BOOST_CONCEPT_ASSERT((boost::BinaryFunction<bar,bool,int,char>));
};
int
main()
{
class_requires_test x;
boost::ignore_unused_variable_warning(x);
return 0;
}
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