From: ryot AT bigfoot DOT com (George Ryot)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: DJGPP 2.95 Templates
Message-ID: <37ecba3c.8727013@news.clara.net>
References: <37E9501D DOT 3E95D5EA AT mail DOT retina DOT ar>
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Date: Thu, 23 Sep 1999 23:41:14 GMT
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To: djgpp AT delorie DOT com
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> I think that I have a problem related to template instantiation,
> the following code :
> 

> // FILE rwfile.h and rwfile.cpp
> #include "smat.h"
> 
> class rwfile
> {
> ..
>     template <class T> int read(  smat<T> data);
> ..
> }

> compiles without problems, but the linker reports (I am using a RHIDE
> 1.4.7 project):
> 
> Error undefined reference to int rwfile::read( smat<int> )
> 
> any ideas?

Yes, you probably wanted to define read() in the header file rwfile.h

template <class T> int rwfile::read(smat<T> data)
{
    // ...
}

Rather than in rwfile.cpp where I assume that you defined it.

OTOH, if you have found a bug in gcc then it is better to reduce the
program to the minimum that causes the error then cut and paste that
verbatim, else it just leaves everybody guessing. :)
-- 
george