gcc solution

Tom Warsinske twarsins@orchard.wccnet.org
Thu May 11 10:19:00 GMT 2000


Greetings again,
I have just discovered the gcc "-fwritable-strings" compiler switch. 
This effectively eliminated the problem which I submitted earlier. 
My apologies.
-Tom Warsinske
++++++++++++++++++++++++++++++++++
Greetings,
The following test code produces a Segmentation Fault when compiled
with
gcc 2.8.1 on Solaris 2.5.1 and with gcc 2.9.5 on Solaris 2.7. 
The
program executes correctly when compiled with Sun's cc: WorkShop
Compilers 4.2 30 Oct 1996 C 4.2 on Solaris 2.5.1.  Here is
the test
program --
++++++++++++++++++++++++
#include <stdio.h>
#include <strings.h>
char *rtrim(char *, char );
int main() {
        char *lname = "MOUSExxxx";
        char *fname = "MICKEY  
";
        lname = rtrim(lname,'x');
        printf("%s \n",lname);
}
char *rtrim(char *str1, char c) {
        char *s;
        printf("%s \n",str1);
        s = index(str1, c);
        printf("%s \n",s);
        *s = '\0';       
<= causes segmentation fault
        return(str1);
}
$a.out
MOUSExxxx
xxxx
Segmentation Fault
 
Cordially yours,
Tom Warsinske, DBA
Washtenaw Community College
Ann Arbor, MI
(734) 973-3654
 
 



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