sizeof T(*p)[]

#include <stdio.h>
#include <stdlib.h>
#define size(W) sizeof (*W)/sizeof (*W[0])

int main (){
  int t [][7]={{1,2,3,4,5,6,7}}; //Array bi original

    int (*p)[size(t)] = t; /*la nueva declaracion de arrays */;
    printf ("size de *p[]= %d \n",size(p));//size desde el puntero

  for (int i=0;i<size(p);i++)  {printf ("dato = %d  \n",(*p)[i]);}
return 0;
}