ceph/src/boost/libs/concept_check/test/old_concept_class_fail.cpp

   1 // (C) Copyright Jeremy Siek, David Abrahams 2000-2006.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 //
   6 // Change Log:
   7 // 20 Jan 2001 - Added warning suppression (David Abrahams)
   8
   9 #include "old_concepts.hpp"
  10
  11 // This file verifies that concepts written the old way still catch
  12 // errors in class context.  This is not expected to work on compilers
  13 // without SFINAE support.
  14
  15 struct foo { };
  16
  17 class class_requires_test
  18 {
  19   BOOST_CLASS_REQUIRE(foo, old, EqualityComparableConcept);
  20 };
  21
  22 int
  23 main()
  24 {
  25   class_requires_test x;
  26   (void)x; // suppress unused variable warning
  27   return 0;
  28 }