ceph/src/boost/libs/icl/test/cmp_msvc_value_born_error_/cmp_msvc_value_born_error.cpp

   1 /*-----------------------------------------------------------------------------+
   2 Copyright (c) 2011-2011: Joachim Faulhaber
   3 +------------------------------------------------------------------------------+
   4    Distributed under the Boost Software License, Version 1.0.
   5       (See accompanying file LICENCE.txt or copy at
   6            http://www.boost.org/LICENSE_1_0.txt)
   7 +-----------------------------------------------------------------------------*/
   8 #define BOOST_TEST_MODULE icl::cmp_msvc_value_born_error unit test
   9 #include <boost/config.hpp>
  10 #include "../unit_test_unwarned.hpp"
  11
  12 namespace unhelpful{
  13     // This declaration of a class template will cause
  14     // the compilation of line 17 to fail with syntax error C2059
  15     template<class T> class value{};
  16 }
  17
  18 //--- affected code ---------------------------------------
  19 template <class Type> struct meta_attribute
  20 {
  21     BOOST_STATIC_CONSTANT(int, value = 0);
  22 };
  23
  24 template <class Type> struct meta_predicate
  25 {
  26     BOOST_STATIC_CONSTANT(bool, value =
  27         ( meta_attribute<Type>::value  < 1)
  28         //error C2059: syntax error : ')'
  29         //IF class template value declared before
  30     //  ((meta_attribute<Type>::value) < 1) // Remedy#1 enclose into ()
  31     //  ( meta_attribute<Type>::value  <=0) // Remedy#2 use operator <=
  32         );
  33 };
  34
  35 BOOST_AUTO_TEST_CASE(dummy)
  36 {
  37     BOOST_CHECK( meta_predicate<int>::value );
  38 }
  39