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Re: C++ problem

To: teunis <teunis at computersupportcentre dot com>
Subject: Re: C++ problem
From: Alexandre Oliva <oliva at dcc dot unicamp dot br>
Date: 25 Nov 1998 01:04:47 -0200
Cc: egcs at cygnus dot com
References: <Pine.LNX.3.95.981123185310.23091G-100000@sigil.mauve.computersupportcentre.com>

On Nov 23, 1998, teunis <teunis@computersupportcentre.com> wrote:

> /root/apps/projects/hive-3D/src/geom/EllipseIterator.hpp:25: undefined
> reference to `EllipseIterator virtual table'

> It's taking place right at a constructor for both classes.
> Any ideas?

Make sure all non-inline non-abstract member functions are defined;
particularly the first of them.  egcs will generate the virtual table
for a class in the translation unit that defines such a member
function.  Yes, this is allowed by the C++ Standard :-)

-- 
Alexandre Oliva  http://www.dcc.unicamp.br/~oliva  aoliva@{acm.org}
oliva@{dcc.unicamp.br,gnu.org,egcs.cygnus.com,samba.org}
Universidade Estadual de Campinas, SP, Brasil

References:
- C++ problem
  - From: teunis

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