strstr

[linuxdude]

I have the char *ptr returned form strstr, but I am wondering how to get it to be an index in an array

char *ptr;
char string[]="This is a string\n");
char what_to_look_for[]="a string");

if((ptr=strstr(string,what_to_look_for))!=NULL){
     printf("Found it...It is the %ith character",???);
}

I have tried typecasting it to an int, but it gives me the memory address. Does anyone have any ideas?

[Thantos]

string[ptr - string]

[linuxdude]

I freagin knew that. I couldn't think of it thanks.