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Re: tolower()/islower() and char

    Date:        Thu, 14 Jan 2021 10:54:45 -0500 (EST)
    From:        Mouse <mouse%Rodents-Montreal.ORG@localhost>
    Message-ID:  <202101141554.KAA18877%Stone.Rodents-Montreal.ORG@localhost>

  | I don't have any POSIX reference

POSIX says the same thing you quoted for X99 about EOF (int with a negative 
value) - which is no big surprise, for C related issues, where POSIX says
anything at all, it is usually just a copy from the C standard.


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