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- Subject: Re: isprint, isgraph &c.
- From: Roberto Ierusalimschy <roberto@...>
- Date: Mon, 24 May 2010 10:19:41 -0300
> Q
>
> On 23 May 2010 08:50, "Stuart P. Bentley" <stuart@testtrack4.com> wrote:
>
> On Wed, 19 May 2010 05:31:49 -0700, Roberto Ierusalimschy <
> roberto@inf.puc-rio.br> wrote:
>
> >> I see ...
> Isn't isgraph just %C?
No. ' ' is neither graph nor control. It may be argued that %C is equal
to printable, but that is not required by the standard. (Plauger [1]
argues that no character can be both control and printable, but he says
that a character may be in no group.)
[1] The Standard C Library. P.J.Plauger.
-- Roberto
