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Date: Wed, 26 Dec 2001 19:32:26 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
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To: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
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In-reply-to: <3C29CCF7.7F3723F3@phekda.freeserve.co.uk> (message from Richard
	Dawe on Wed, 26 Dec 2001 13:13:27 +0000)
Subject: Re: regcomp NLS fix
References: <6F32F7D2 DOT 12300D8B DOT 09ACFA57 AT netscape DOT net> <3C29CCF7 DOT 7F3723F3 AT phekda DOT freeserve DOT co DOT uk>
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> Date: Wed, 26 Dec 2001 13:13:27 +0000
> From: Richard Dawe <rich AT phekda DOT freeserve DOT co DOT uk>
> 
> * Why do you cast int characters to unsigned char, when passing them to
> the ctype functions?

Because otherwise they will be sign-extended to negative integers
when ctype functions use the character as an index into its tables.