Why dont languages allow overloading of methods by return value?

Question

c, java and many other languages do not pay attention to return values.

int   i = func()
float f = func()
int   func() { return 5 }
float func() { return 1.3         


        

Answer 1

For a C++ example, consider:

void g(int x);
void g(float x);
g(func());

Which of the overloaded g() functions would be called?