Subj : Re: strange string pointer to strings...?
To   : borland.public.cpp.borlandcpp
From : maeder
Date : Thu Sep 29 2005 01:00 am

"mujeebrm" <mujeebrm@y!.com> writes:

> #include <stdio.h>
> #include <conio.h>
> #include <string.h>
>
> int main(void)
> {
>
> /* this does not make sense to me that when i keep adding rows and columns
>    of strings to this array of pointers to strings it just keeps
>    going on, any explanation for this ?

The program is severely flawed in several ways. It suspiciously looks
like a school assignment, so I won't give you the solution.


> */
> char *s[][5]= {
> "one","qwer",
> "two", "rewq",
> "three", "qwer",
> "four", "rewq",
> "five", "qwertttt",
> " ", " "
> };

Please read the other post of today by myself in this group. It is a
bad idea to have pointers to char (non-const) pointing at string
literals.

Then 5 is obviously too short for "three" and "qwertttt".


> char **sp=0,w[10];
> int c;
>
> do
> {
>  gets(w);

A call to this function is *always* a bug. The function must
*absolutely never* be used, because it doesn't check the size of the
buffer.

Have a look at fgets() as a replacement.


>  sp = (char **)s;//why r we supposed to init this pointer to pointer to 
> strings
>                  // again and again thru the loop

You can't have a pointer to pointer to char point to an array of
arrays of char. The types are not compatible. The endless loop in your
program is a consequence of this incompatibility.

.