http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51191
Bug #: 51191 Summary: [C++0x] SEGV on deducing template aliases with non-template alias declarations Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: gintensub...@gmail.com Code: template< class T > class ClassTemplate {}; template< class T > struct Metafunction { typedef T type; }; template< class T > using TemplateAlias = ClassTemplate< typename Metafunction<T>::type >; using Alias = TemplateAlias<int>; // no SEGV if changed to "typedef TemplateAlias<int> Alias;" template< class T > void f( TemplateAlias<T> ); int main() { Alias x; // no SEGV if changed to "TemplateAlias<int> x;" f( x ); // no SEGV if changed to "f<int>(x);" } Message: In function 'int main()': Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. GCC version: gcc-4.7-20111112