CODEWITHSUNDEEP
c++
user1563551
user1563551

Reputation: 97

Both Default parameters set giving error/

In my ".h" file , I have defined :

    example(CQueue* queue = NULL, double code = 0);

In 2 different methods of my ".cpp" file, I have to use :

    example(queue);

    example(code2);

I get errors in both cases. I didnt want to overload. Is defining it :

    example(CQueue* queue, double code = 0);

the only way? or can I define it the way it is currently defined?

Upvotes: 0

Views: 69

Answers (2)

pb2q
pb2q

Reputation: 59617

If you want to pass a specific value for code, you must also pass a value for the earlier optional parameters, even if they're given default values in the method signature.

Just explicitly pass what you've defined as the default value: example(NULL, code2);

Your definition is fine, but if you want to be able to also call example(code2) then you must overload.

example(queue); should work depending on the declaration of queue.

Upvotes: 1

Luchian Grigore
Luchian Grigore

Reputation: 258618

You can define it like that, but don't expect the second call to work. The first one should be fine, provided queue is a CQueue*. If it's an object, you'll need to pass its address: &queue.

You'll have to change the second call to:

example(NULL, code2);

or, as you said, overload.

Upvotes: 2

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