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From: aglew@ccvaxa.UUCP
Newsgroups: net.lang.c
Subject: Re: Datalight faster than 4.2, why?
Message-ID: <2600063@ccvaxa>
Date: Fri, 6-Jun-86 11:52:00 EDT
Article-I.D.: ccvaxa.2600063
Posted: Fri Jun  6 11:52:00 1986
Date-Received: Sun, 8-Jun-86 06:10:31 EDT
References: <989@dataioDataio.UUCP>
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Nf-From: ccvaxa.UUCP!aglew    Jun  6 10:52:00 1986


... > sizeof and /lib/cpp

(1) I apologize to the net. The latest ANSI C draft explicitly does not
allow sizeof in #if conditionals. I believe that earlier versions did, or
were vague enough to let me think so.

(2) I am mildly annoyed by people who say "/lib/cpp does not recognize
sizeof, /lib/ccom does". People who talk in the present tense show a limited
imagination. Ditto people who talk in a limited geographic or
market-oriented tense. The C preprocessor is not always /lib/cpp, nor is the
first step of the compiler /lib/ccom; there are many C systems out there where
they have different names, or are merged. There are even systems where
sizeof is recognized in #ifs.

Enough. Sorry to, perhaps, have misled anybody about sizeof in ANSI C.
Sorry, also, to be disappointed by this being missing.