On 9/25/16, Bernd Edlinger <be...@edlinger-online.de> wrote: > Hi Martin, > > in the past I have seen (and fixed) code like > > sprintf(buf, "%s %d", buf, x); > > that may possibly work by chance, but usually > produces undefined results. > > Do you see a way to enhance the warning for cases > where the output buffer overlaps an input buffer? > > > > Thanks > Bernd. >
I was testing Prathamesh's -Wrestrict patch, and it caught a few cases like that: https://gcc.gnu.org/ml/gcc-patches/2016-09/msg00027.html Eric
