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From: guy%gorodish@Sun.COM (Guy Harris)
Newsgroups: comp.lang.c
Subject: Re: COMMA separated expresses
Message-ID: <22059@sun.uucp>
Date: Thu, 25-Jun-87 04:58:10 EDT
Article-I.D.: sun.22059
Posted: Thu Jun 25 04:58:10 1987
Date-Received: Sat, 27-Jun-87 01:09:04 EDT
References: <1601@oliveb.UUCP>
Sender: news@sun.uucp
Lines: 15

> Why did my C compiler(came with 4.3bsd) complaint the "syntax error"
> with the following COMMA separated express statements in a function:
...
> 		printf("A\n"), return; /* syntax error here */
> 
> Could someone point this out ? It seems to me that rule 7.15 Comma
> operator, on page 192 of C Programming Language doesn't state much
> on this.

Yes, it does.  It states that a "comma-expression" is an
"expression", a comma, and another "expression".  "return", however,
is NOT an "expression", it's a "statement".  See p. 203.
	Guy Harris
	{ihnp4, decvax, seismo, decwrl, ...}!sun!guy
	guy@sun.com