From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
From: Prem Mallappa <prem_mallappa@hotpop.com>
Message-ID: <pan.2004.03.07.05.32.00.621137@hotpop.com>
Content-Type: text/plain; charset=ISO-8859-1
Subject: [9fans] constant string
Date: Mon,  8 Mar 2004 10:15:07 +0000
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Topicbox-Message-UUID: 22bcb72a-eacd-11e9-9e20-41e7f4b1d025

hi,

this is my program
------------------------------------------
#include <stdio.h>

int main(void)
{
	char *s =3D "Hello";
=09
	s[2] =3D 'z';
=09
	printf ("%s\n", s);
=09
	return 0;
}

------------------------------------------

my question is when i compile this in Linux (gcc) i get a segmentation=20
fault at the second statement of main(),
As far as my knowledge i think this is because in 2nd chapter of K&R book
it is being mentioned that
' any thing enclosed between " and " is a string constant' so here i am
changing a constant, and i get a segmentation fault ( and i also noticed
that gcc stores the string Hello in read-only datasegment)

but when i compile the same thing in plan9 C compiler ( both native "8c"
and "pcc" i get a output of "Hezlo")
why this is happenning..

sorry if i am posting to wrong group,
thanks in advance
prem