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Template Issues (again)

Started by Normie Apr 11, 2002 at 9:00 AM 4 replies 400+ views

Original Post

Apr 11, 2002 at 9:00 AM

I''ve got a templated binary tree class. The whole thing works when the declaration and definitions are in the same header file, but if I try to separate them into 2 files (like my mind is screaming at me to do out of habit right now

), it just doesn''t go. I''m aware that this is a template issue, but I''ve searched the forums, and I can''t really figure out what to do about it. Any way to get my class to work with the declaration and definition separated? -Normie

Spiral

Apr 11, 2002 at 9:26 AM

You could put the implementation into another file (.ctt is a common extension, IIRC) and #include it into the bottom of your header file, under the class declaration.

sbennett

Apr 11, 2002 at 10:38 AM

I''m not sure of this, but if your class declaration says

template
class...

then put ''template'' in front of the definition of every method in your .cpp implementation file. I don''t know, maybe you''ve done this, but it might solve your problem.

Normie

Author

Normie

Apr 11, 2002 at 11:18 AM

quote:

You could put the implementation into another file (.ctt is a common extension, IIRC) and #include it into the bottom of your header file, under the class declaration.

So, wait, the .h file and the .ctt (or .cpp, or whatever) include each other? Isn''t that a circular definition?

Not to mention, there''s another problem: I have a pair of ''helper'' global functions declared in the header, and defined in the cpp. This going to hurt anything?

-Normie

Spiral

Apr 11, 2002 at 9:52 PM

quote:
Original post by Normie
So, wait, the .h file and the .ctt (or .cpp, or whatever) include each other? Isn''t that a circular definition?

Dont #include your header file in the .ctt file.

quote:

Not to mention, there''s another problem: I have a pair of ''helper'' global functions declared in the header, and defined in the cpp. This going to hurt anything?

I cant think of any reason why not. Best way to find out is to try it.

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