http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55183
Bug #: 55183 Summary: GCC 4.8 constexpr is too permissive Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: steve...@gmail.com In the second patch set here uploaded by my colleague: https://codereview.qt-project.org/#change,33290 GCC 4.8 was too permissive in its handling of constexpr compared to GCC 4.6 and clang. I don't know how to create a minimal testcase for this issue, but wanted to file it in case it can be fixed before 4.8 is released.