ceph/src/boost/libs/concept_check/test/old_concept_pass.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 #include <boost/concept_check.hpp>
   7 #include "old_concepts.hpp"
   8
   9 // This test verifies that use of the old-style concept checking
  10 // classes still compiles (but not that it detects constraint
  11 // violations).  We check them with the old-style macros just for
  12 // completeness, since those macros stranslate into
  13 // BOOST_CONCEPT_ASSERTs.
  14
  15 struct foo { bool operator()(int) { return true; } };
  16 struct bar { bool operator()(int, char) { return true; } };
  17
  18
  19 class class_requires_test
  20 {
  21   BOOST_CLASS_REQUIRE(int, old, EqualityComparableConcept);
  22   typedef int* int_ptr; typedef const int* const_int_ptr;
  23   BOOST_CLASS_REQUIRE2(int_ptr, const_int_ptr, old, EqualOpConcept);
  24   BOOST_CLASS_REQUIRE3(foo, bool, int, old, UnaryFunctionConcept);
  25   BOOST_CLASS_REQUIRE4(bar, bool, int, char, old, BinaryFunctionConcept);
  26 };
  27
  28 int
  29 main()
  30 {
  31     class_requires_test x;
  32     boost::ignore_unused_variable_warning(x);
  33     return 0;
  34 }