Print value and address of pointer defined in function?

Question

I think this is a really easy thing to code, but I\'m having trouble with the syntax in C, I\'ve just programmed in C++.

#include 
#include 

        

Answer 1

To access the value that a pointer points to, you have to use the indirection operator *.

To print the pointer itself, just access the pointer variable with no operator.

And to get the address of the pointer variable, use the & operator.

void pointerFuncA(int* iptr){
    /*Print the value pointed to by iptr*/
    printf("Value:  %x\n", *iptr );

    /*Print the address pointed to by iptr*/
    printf("Address of value: %p\n", (void*)iptr);

    /*Print the address of iptr itself*/
    printf("Address of iptr: %p\n", (void*)&iptr);
}

The %p format operator requires the corresponding argument to be void*, so it's necessary to cast the pointers to this type.