#include <iostream>
 void somefunc(unsigned int fptr)
 {
   float * temp;
   temp = (float *)fptr;
   *temp=99.9;
 }

 int main()
 {
   float fl=3.14;
   unsigned int addr=(unsigned int) &fl;
   somefunc(addr);
   cout << fl << endl;
   return 0;
 }