http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57862
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #8 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- As Mikael says, this is undefined behaviour.