1 //Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. 2 3 //Distributed under the Boost Software License, Version 1.0. (See accompanying 4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 5 6 #include <boost/exception/detail/is_output_streamable.hpp> 7 8 namespace 9 n1 10 { 11 class 12 c1 13 { 14 }; 15 } 16 17 namespace 18 n2 19 { 20 class 21 c2 22 { 23 }; 24 25 std::ostream & operator <<(std::ostream & s,c2 const &)26 operator<<( std::ostream & s, c2 const & ) 27 { 28 s << "c2"; 29 return s; 30 } 31 } 32 33 template <bool Test> 34 struct test; 35 36 template <> 37 struct 38 test<true> 39 { 40 }; 41 42 int main()43main() 44 { 45 test<!boost::is_output_streamable<n1::c1>::value>(); 46 test<boost::is_output_streamable<n2::c2>::value>(); 47 test<boost::is_output_streamable<int>::value>(); 48 return 0; 49 } 50