#include<stdio.h>
 
int value=0;
void changePtr(int **ptr)
{
		printf( "%p ptr before assignment \n", *ptr);
        *ptr=&value;
        printf( "%p ptr after assignment \n", *ptr);
}
 
int main()
{
 
		printf( "%p address of int value\n", &value);
 
        int localValue=1;
        int *localPtr=&localValue;
 
        printf( "%p before changePtr\n", localPtr);
 
        changePtr(&localPtr);
 
        printf( "%p after changePtr\n", localPtr);
 
        printf("%d\n",*localPtr);
        return 0;
}
 
 
 

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