Thread: BZERO recreation

Helloo... been staring at the same screen for too long and am hoping I can get a tip or two off you cboarders!

I have attempted to re-code the BZERO function. The function appears to do what I want it to do. I am having trouble printing out the result in my main for testing purposes. My main output keeps showing nothing..

Regarding pointers, is it possible to go back with a pointer after having gone forward? In my example, my string is "abcdcdee". Once I have moved the pointer to "ee", can I move it back to retrieve the full string again, to then send it back in to the main?

Function:

Code:

#include <stdlib.h>

void ft_bzero(void *s, size_t n)
{
    char   *sentence;


    sentence = (char*)s;
    printf("n is: %u\nsentence is: %c\n\n\n", n, *sentence);
    while(n > 0)
    {
        printf("n is: %u\nBEFORE: %c\n", n,*sentence);
        *sentence = '\0';
        printf("AFTER: %c\n\n", *sentence);
        sentence++;
        n--;
    }
    //sentence = sentence - n????;
    printf("The remainder:\n%s\n\n", sentence);
    return(0);
}

MAIN:

Code:

#include <stdio.h>#include <string.h>


int main () {


    char str[] = "abcdcdee";
    int c = 6;


    ft_bzero(str, c);
    printf("String after first |%d| bytes changes to 0 is - |%s|\n", c, str);


   return(0);
}

Hi GReaper,

Thanks for your post. I was trying to print the whole string as I thought that the remaining part would show.. "\0\0\0\0\0\0ee". I was expecting to see the ee using %s.