C ++ Class Prototype Conflict

Question

Given that the classes below are in two separate header files and can be displayed in any order:

//TestB.h
class TestB; //Forward declaration for a later operator= in a centralised header

class TestA
{
    const TestA&operator=(const TestB); //defined in Test.h
};

and

//TestA.h
class TestA; //Forward declaration for a later operator= in a centralised heaer

class TestB
{
    const TestB&operator=(const TestA); //defined in Test.h
};

How to avoid prototype conflict?

Help is appreciated.

I absolutely apologize to everyone! I assumed that there would be links (ampersands in the operator = arguments - I would never go through copying simple PODs) and had in mind the question exclusively about prototyping conflicts! I think this speaks of the importance of evidence! I accepted the answer, given the original (my erroneous) context.

I just turned away for just a few minutes and did not know about the wine!

Answer 1

. , - .

//TestB.h
class TestB; //Forward declaration for a later operator= in a centralised header

class TestA
{
    const TestA&operator=(const TestB &); //defined in TestB.h
};

//TestA.h
class TestA; //Forward declaration for a later operator= in a centralised heaer

class TestB
{
    const TestB&operator=(const TestA *); //defined in TestA.h
};

TestA.h, TestB.h TestA.cpp TestB.cpp, -.

Answer 2

.

, , . :

// A.cpp
#include "A.h"
#include "B.h"  // for complete type TestB

const TestA & TestA::operator=(const TestB) { /* ... */ }

// B.cpp
#include "B.h"
#include "A.h"  // for complete type TestA

const TestB & TestB::operator=(const TestA) { /* ... */ }

, , TestA TestB, , A.h, B.h, , . , , , ( !) .

---

< > , , .

, , , :

const TestA & operator=(const TestB &);
                                  ^^^^^
                                  vvvvv
const TestB & operator=(const TestA &);

Answer 3

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, , .

Answer 4

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