[Bug middle-end/49905] Better sanity checking on sprintf src & dest to produce warning for dodgy code ?

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49905

--- Comment #12 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to David Binderman from comment #11)
> So it looks to me like format %Lx isn't handled.

Also, %lf seems to cause a crash.