Primitive Templated Class

Hey all,

I'll get straight to the point; I've got a simple templated class, with some template specialization thrown in. The source is included. The problem is, I'm getting an "undefined reference" when I try to compile. I have no idea what I'm doing wrong, I've worked with templates before and never encountered this problem. From the error I deduce that it's something extremely primitive, however I still can't locate it.

Thanks in advance for any help,

Gabe

You can not [unless you are using rare and exclusive compiler] put your template function definition in a .cpp file [1], since the compiler must be able to see the template defintions when it compiles the code [unless you produce definitions for all of the specializations that you ever use, which goes against the idea of templates in the first place].

[1] Unless you use #include "something.cpp" inside your .h file.

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Mats

Oh... I never realized that. Where should I put the #include in the file? I tried it and it gave me a ton of errors.... But thanks anyway

Never include .cpp files. Put the template implementation into the header file, or perhaps a separate .ipp file that gets included. .cpp files are far too likely to be compiled explicitly.

...ipp?

ipp means "inline ++" or something like that, I think.

I was a bit brief, I should have made a comment to say "don't do that".

In this case, just copy and paste all of the .cpp content [except the #include of the template declarations themselves] into the header file, delete the .cpp file.

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Mats

Ok, thanks a lot )