The document discusses issues related to overload resolution in C++ when using pointers, illustrated by a code example with a function 'f' that has multiple overloads for different pointer types. It poses questions regarding the problems caused by trying to call 'f' with a null pointer and suggests considering potential fixes. Additionally, it asks whether similar issues can arise in Java.

1. Pointers present some special problems for overload resolution. Consider the following C++
code:
void f( int* x) { ... }
void f( char* x) { ... }
int main()
{ ...
f(0);
...
}
What is wrong with this code? How might you fix it? Can this problem also occur in Java?