http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51464
Bug #: 51464 Summary: [c++0x] ICE with invalid use of [] Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: reich...@gcc.gnu.org The following invalid code snippet triggers an ICE since GCC 4.5.0: =========================================== template<int = sizeof([])> struct A {}; =========================================== bug.cc:1:23: error: lambda-expression in unevaluated context bug.cc:1:24: error: definition of 'struct<lambda>' inside template parameter list bug.cc:1:24: internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in begin_lambda_type, at cp/semantics.c:8609 Please submit a full bug report, [etc.]