#include<stdio.h>
#include<stdlib.h>
int main()
{
    int array[] = {1, 2, 3};
    int *iptr = &array[0];
    int num = *iptr++;//1) In this expression the value of 'i' is assigned to num. And an attempt of post incrementing the address stored in *iptr is done as side effect.
    printf("Num value: %d\n",num);
 
    printf("Pointer: %p\n", (void*)iptr);//2) The address of *iptr is not incremented. If it was then the value of 'i' would not be printed instead it would print the incremented address itself.
 
    printf("Post increment: %p\n", (void*)iptr++);//3) The address of *iptr will be post incremented (which didn't happen in case of num). But for now the value of 'i' will be printed.
 
    printf("After increment: %p\n",(void*)iptr);//4) Now the incremented address stored in *iptr will be displayed as there is no value assigned to that address.
    return 0;
}
 

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