http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54158
Bug #: 54158 Summary: Silently accepts sizeof to non-static member without object in C++03 mode Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: minor Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: ai.az...@gmail.com The following code is not well-formed in C++03. ///////////////////////////// struct Class { int Member; }; int i[sizeof(Class::Member)]; ///////////////////////////// However, GCC 4.6.4 20120727, 4.7.2 20120728 and 4.8.0 20120729 accept this code without any warning, even with `-std=c++03', `-Wall' and `-pedantic'.