concept_check/class_concept_check_test.cpp

// (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_CLASS_REQUIRE(int, boost, EqualityComparableConcept);
  typedef int* int_ptr; typedef const int* const_int_ptr;
  BOOST_CLASS_REQUIRE2(int_ptr, const_int_ptr, boost, EqualOpConcept);
  BOOST_CLASS_REQUIRE3(foo, bool, int, boost, UnaryFunctionConcept);
  BOOST_CLASS_REQUIRE4(bar, bool, int, char, boost, BinaryFunctionConcept);
};

int
main()
{
  class_requires_test x;
  boost::ignore_unused_variable_warning(x);
  return 0;
}