[Bug bzip2/28283] undefined behavior for isdigit and isspace

[pmqs at outlook dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28283

Paul Marquess <pmqs at outlook dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |pmqs at outlook dot com

--- Comment #1 from Paul Marquess <pmqs at outlook dot com> ---
This issue has been reported downstream in the Perl sources, which include a
sub-set of the bzip2 source. Believe that OpenBSD is a candidate for this issue
causing a problem.

Also, see
https://wiki.sei.cmu.edu/confluence/display/c/STR37-C.+Arguments+to+character-handling+functions+must+be+representable+as+an+unsigned+char
for details on a coding standard that mentions the isdigit issue.

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