http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51314
--- Comment #2 from Marc Glisse <marc.glisse at normalesup dot org> 2012-04-19 21:19:23 UTC --- Created attachment 27200 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27200 patch s.cc: In function 'void f(U ...)': s.cc:3:18: error: 'sizeof...' argument must be surrounded by parentheses A<sizeof...U> x; // template argument 1 is invalid ^ s.cc:3:19: error: template argument 1 is invalid A<sizeof...U> x; // template argument 1 is invalid ^ s.cc:3:22: error: invalid type in declaration before ';' token A<sizeof...U> x; // template argument 1 is invalid ^ s.cc: At global scope: s.cc:10:37: error: 'sizeof...' argument must be surrounded by parentheses typedef Indices<I...,sizeof...I> type; // OK ^ Error recovery is not that great in the first case, but fine in the second.
