http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53965 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-07-15 00:29:38 UTC --- The code is not valid, in-class initializers must use a "brace-or-equals-initializer" meaning: A a{ init }; or: A a = init; not: A a( init );