#include <stdio.h>
#include <windows.h>

char * explode(char * toExplode, char * delimiter) /* Need to add a buffer size here */
{
    char * token;
    token = strtok(toExplode, delimiter);
    token = strtok(NULL, delimiter);

    return token;
}

int main(void)
{
    char string[] = "This is a string yaaaaay";
    char * exploded;

    exploded = explode(string, " ");
    printf("%sn", exploded); /* Should currently return 'is' */

    return 0;
}

char * explode(char * toExplode, char * delimiter, int length)
{
   ...
}

char * explode(char * toExplode, char * delimiter)
{
   int len = strlen(toExplode);
   return explode(toExplode, delimiter, len);
}

char * explode(char * toExplode, char * delimiter, int length){
    if(length == 0)
        length = ...;

char * explodel(char * toExplode, char * delimiter, int length);
char * explode (char * toExplode, char * delimiter){
    int length = ...;
    return explodel(toExplode, delimiter, length);
}

#define explode (s, ...) explodel(s, __VA_ARGS__, 0)
char *  explodel(char * toExplode, char * delimiter, int length, ...);

error: expected expression before ',' token

char * explode(char * toExplode, char * delimiter,unsigned int plen) /* Need to add a buffer size here */
{
    static unsigned int slen = 100;
    unsigned int len;
    char * token;

    if (plen!=0)
        len = plen;
    else
        len = slen;

   /*...*/
}