On Tue, Dec 29, 2020 at 06:03:36AM -0700, Todd C. Miller wrote: > On Tue, 29 Dec 2020 10:33:26 +0000, Miod Vallat wrote: > > > regcomp.c uses the "start + count < end" idiom to check that there are > > "count" bytes available in an array of char "start" and "end" both point > > to. > > > > This is fine, unless "start + count" goes beyond the last element of the > > array. In this case, pedantic interpretation of the C standard makes > > the comparison of such a pointer against "end" undefined, and optimizers > > from hell will happily remove as much code as possible because of this. > > OK millert@
Thank you. I have committed this batch of four diffs.
