overloading not

why when I try to compile this

Code:

---

test& operator~ (const test& b1, const test& b2);

---

I get:

error: âtest& Htest::operator~(const test&, const test&)â must take âvoidâ

operator~ is a unary operator. Therefore, if it is overloaded as a member function, it must have take no arguments. If it is overloaded as a free function, it must take exactly one argument.

and does it return a test& or a test? a reference or a value?

Most likely it would return by value. (But of course there are exceptions for exceptional semantics.)

how about this one:

Code:

---

type& operator~=();

---

I get this error:

:35: error: expected primary-expression before â)â token
:35: error: declaration of âoperator~â as non-function

operator~= is a binary function.

so it should take two arguments you mean?

You cannot overload ~= because it's not a valid operator in C++. You can only overload (most of) the operators that already come with the language.

Quote:

---

Originally Posted by Ronix

You cannot overload ~= because it's not a valid operator in C++. You can only overload (most of) the operators that already come with the language.

---

Yes, that is correct.

By the way, -EquinoX-, I really suggest that you post the smallest and simplest program that demonstrates the error.