concept_check/class_concept_fail_expected.cpp

// (C) Copyright Jeremy Siek 2000. Permission to copy, use, modify,
// sell and distribute this software is granted provided this
// copyright notice appears in all copies. This software is provided
// "as is" without express or implied warranty, and with no claim as
// to its suitability for any purpose.
//
// Change Log:
// 20 Jan 2001 - Added warning suppression (David Abrahams)

#include <boost/concept_check.hpp>

/*

  This file verifies that class_requires of the Boost Concept Checking
  Library catches errors when it is suppose to.

*/

struct foo { };

using namespace boost;

class class_requires_test
{
  BOOST_CLASS_REQUIRES(foo, EqualityComparableConcept);
};

int
main()
{
  class_requires_test x;
  (void)x; // suppress unused variable warning
  return 0;
}