Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!hao!oddjob!mimsy!chris
From: chris@mimsy.UUCP (Chris Torek)
Newsgroups: comp.unix.xenix
Subject: Re: uPort 1.3 cc static char *
Message-ID: <9468@mimsy.UUCP>
Date: Sun, 22-Nov-87 12:46:13 EST
Article-I.D.: mimsy.9468
Posted: Sun Nov 22 12:46:13 1987
Date-Received: Wed, 25-Nov-87 02:51:31 EST
References: <471@petro.UUCP> <1120001@hpisoa2.HP.COM>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 28

<In article <471@petro.UUCP> jrb@petro.UUCP (Jon Boede) notes
<>... when using the -Ml (large) model the following crashed and burned...
<>
<>main()
<>{
<>	char *a_pointer;
<>
<>	a_pointer = "some static data";
<>
<>	puts(a_pointer);
<>}
<>
<>However, when I change a_pointer to "static char *a_pointer" it works.  Why?

In article <1120001@hpisoa2.HP.COM> jackg@hpisoa2.HP.COM (Jack Gerson) writes:
>You didn't allocate memory for your character array, so it's no surprise
>your process crashed.

Nope.  Quoted strings ("some static data") are put by the compiler into
some initialised space (text or data); the `value' of such an expression
is a pointer of type `(char *)' which points to the first character of
the string.

In other words, if the program shown above crashes, the compiler
or support library is broken.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690)
Domain:	chris@mimsy.umd.edu	Path:	uunet!mimsy!chris