I guess I was not clear. Say, we have two structures.
str1 {int x, char y} and str2 {int x, char *y};
printf(sizeof(struct str1)); will give proper output. ie memory occupied
by str1.
What I want is, instead of hard-coding str1 etc., I want to find
the size of structure which I will give as 1st argument. So, if the
program name is size, i'll give:
$ ./size str1 --- to get size of str1
$ ./size str2 --- to get size of str2
The code which I gave earlier is giving compile-time error message.
Thanks,
Vikas
--- Rechberger Markus <[EMAIL PROTECTED]> wrote:
> strlen on a null pointer will segfault...
> if arc is 1 then argv[0] will contain a pointer to an array of char
> if arc is 2 then argv[1] (the users first argument) will contain an
> array of char..
> so don't forget to check the number of arguments ..
>
> On 7/15/05, Vadiraj <[EMAIL PROTECTED]> wrote:
> > Vikas,
> >
> > On 7/15/05, Vikas S <[EMAIL PROTECTED]> wrote:
> > > I want to find out the size of a structure which the user will give as an
> > > argument
> > > as follows.
> > >
> > > #include <> -- All includes..
> > > ..
> > > main(int arc, char *argv[])
> >
> > argv is a charecter pointer . You cannot pass struct * as an
> > arguement to main.
> >
> > > {
> > > printf("Size of structure %s is: %d\n", argv[1], sizeof(struct argv[1]));
> >
> > use strlen(argv[1]) to find the lenght of the string.
> >
> > --
> > cheers,
> > Vadi
> > -
> > To unsubscribe from this list: send the line "unsubscribe
> > linux-c-programming" in
> > the body of a message to [EMAIL PROTECTED]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> >
> -
> To unsubscribe from this list: send the line "unsubscribe
> linux-c-programming" in
> the body of a message to [EMAIL PROTECTED]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
__________________________________
Do you Yahoo!?
Yahoo! Mail - You care about security. So do we.
http://promotions.yahoo.com/new_mail
-
To unsubscribe from this list: send the line "unsubscribe linux-c-programming"
in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
