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From: steve@taumet.com (Stephen Clamage)
Newsgroups: comp.sys.ibm.pc.programmer
Subject: Re: `C' type question...
Message-ID: <309@taumet.com>
Date: 10 Jul 90 16:30:20 GMT
References: <26854@netnews.upenn.edu>
Distribution: usa
Organization: Taumetric Corporation, San Diego
Lines: 17

weisen@eniac.seas.upenn.edu (Neil Weisenfeld) writes:

>Maybe I should read K&R a little more thoroughly before posting this, but...

Yes.

>Why does the following segment of code give a conversion between
>integral types warning under MSC6.00?
>#define ACTUAL_SPACE ' '
>      *mem++=(*str)?(*str++):ACTUAL_SPACE;

The type of a character constant (' ' in your example) is int, not char.
Hence the left side of the colon is type char and the right side is int.
The compiler is correct in issuing the warning.
-- 

Steve Clamage, TauMetric Corp, steve@taumet.com