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Cast isdigit argument as unsigned char #63

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Cast isdigit argument as unsigned char #63

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Commits on Dec 25, 2022

  1. Cast isdigit argument as unsigned char 

    The only portable safe way is to always cast to (unsigned char).

http://man.openbsd.org/isdigit#CAVEATS
> The argument c must be EOF or representable as an unsigned char;
> otherwise, the result is undefined.
    @afresh1
    afresh1 committed Dec 25, 2022
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