void * arithmetic

#include<stdio.h>
int main(int argc,char *argv[])
{
   int i=10;
   void *k;
   k=&i;

   k++;
   printf("%p\n%p\n",&i,k);
   return 0;
}

Is ++ a legal operation on void* ? Some books say that it's not but K & R doesn't say anything regarding void * arithmetic ( pg. 93,103,120,199 of K &R 2/e)

Please clarify.

PS : GCC doesn't complain at least in k++.