http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54420
Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jason at gcc dot gnu.org --- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2012-09-04 22:16:57 UTC --- The name __lambda, like all names beginning with "__", is reserved to the implementation. In addition, some identifiers are reserved for use by C++ implementations and standard libraries (17.6.4.3.2) and shall not be used otherwise; no diagnostic is required. — Each name that contains a double underscore _ _ or begins with an underscore followed by an uppercase letter (2.12) is reserved to the implementation for any use. I'll fix 4.8 to avoid crashing on this testcase, but I don't want to change the release branches.