[Bug c++/56815] void pointer arithmetic

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56815



--- Comment #18 from Jason Merrill <jason at gcc dot gnu.org> 2013-04-03 
13:45:57 UTC ---

void arithmetic is a deliberate GNU extension, so it should be a pedwarn rather

than permerror.