C strtok() not tokenizing correctly?

Question

i've been trying to figure this out for a while now and i have absolutely no clue how to fix this. I have a pretty decent sized project and i'm using strtok countless times wihout any problems but it's not working here. Please Help :(

Edit: i was looking for prefix removal and not strtok. I'm leaving this here if someone is confused and googles this.

This is the code in question:

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

int main()
{
   char root[1000]; 
   char home[1000];

   strcpy(root,"/Users/me/Desktop/my-project"); // this is working
   strcpy(home,"/Users/me/Desktop/my-project/home"); // this is working

   strtok(home,root); // here's the problem

   printf("%s",home);
}

Result 1:

/Users/me/Desktop/my-project/h

I've also tried:

char *ptr = strtok(home,root);

printf("%s",ptr);

Result 2:

h

Shouldn't both return /home ?

Answer 1

as @paxdiablo pointed out and as i was using it in my entire project (i haven't slept so forgive me), strtok(char * str, char * delimiters) takes a list of delimiters.

What i was actually trying to do was remove the root substring from the home string.

Since they will always start with the same substring /Users/me/Desktop/my-project, i can find the part unique to home right after root ends and that can be done like this really easily:

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

int main()
{
   char root[1000]; 
   char home[1000];

   strcpy(root,"/Users/mbp/Desktop/my-project");
   strcpy(home,"/Users/mbp/Desktop/my-project/home");

   int n = strlen(root); // length of the root string

   // where to copy, from where to start copying, how many to copy
   strncpy(home, home + n ,strlen(home)-1); 

   printf("%s",home);
}

So what i do is:

1. get the length of root to know where it ends
2. override what's stored in home by copying the part from home[n] to home[strlen(home)-1]

Result:

/home