Subj : Re: query
To   : comp.programming
From : Joe Wright
Date : Thu Sep 22 2005 10:58 pm

deshpandeajit@yahoo.com wrote:
> Hi,
>   I have following piece of C-code below. Pls go thru and try to answer
> the questions I have below:
> 
> void func(char **);
> main()
> {
> char *a[]={"god","father"};//ARRAY OF strings,i.e.
> 
> func(a);
> 
> }
> 
> void func(char **ptr)
> {
> Now here in function "func" i want to access(printf), the 2 strings
> "god" and "father". How can I do so.
>   e.g. printf("%s %s ",*ptr,*ptr +/- <some pointer offset from the
> first pointer value for the first string "god">  );
> 
> }//func ends
> 
> 1.)My question is how can I access/printf the second string "father" by
> using variable ptr. How do I calculate the pointer offsets for this
> second string from the first one?
> 
> 2.)Second question : Is there any way by which I can get sizeof the two
> strings in bytes, for the definition below -
> char *a[]={"god","father"};
> 
> wishes,
> AD.
> 
#include <stdio.h>
#include <string.h>

void func(char **ppc) {
    char *cp;
    int i = 0;
    while ((cp = ppc[i++]) != NULL) {
       printf("%3d %s\n", (int)strlen(cp), cp);
    }
}

int main(void) {
    char *a[] = {"God", "Father", "Son", "Holy Ghost", NULL};
    func(a);
    return 0;
}

My apologies to comp.programming. This more properly belongs in comp.lang.c.

-- 
Joe Wright
"Everything should be made as simple as possible, but not simpler."
                     --- Albert Einstein ---

.