id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2037	concept_check fails with types declared in unnamed namespace	Stephan	jsiek	"after upgrading to gcc 4.2.3 the following snippet fails to compile

{{{
#include <boost/concept_check.hpp>
struct MyVisitor{};
namespace test{ struct MyVisitor{};}
namespace{ struct MyVisitorAnon{};}

int main(){
  using namespace boost;
  function_requires<CopyConstructible<MyVisitor> >();
  function_requires<CopyConstructible<test::MyVisitor> >();
  function_requires<CopyConstructible<MyVisitorAnon> >(); //this linebreaks the build
  return 0;
}
}}}
The error message is attached.
Is this a problem of gcc or concept_check?


"	Bugs	closed	To Be Determined	concept_check	Boost 1.40.0	Problem	worksforme		stephan.diederich@…