K&R exercise 5-3, strcat

kr5-3.c

#include <stdio.h>

void *strcatsnot(char *s, const char *t);

void *strcatsnot(char *s, const char *t)
{
    while (*++s)
        ;
    while (*s++ = *t++)
        ;
}

int main()
{
    char snot[40] = "why so ";
    char blah[] = "cereal?";
    strcatsnot(snot, blah);
    printf("%s\n", snot);
    return 0;
}