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Re: strange link problem

From: Dietmar Kuehl
Subject: Re: strange link problem
Date: Tue, 07 Mar 2006 14:34:28 +0100
User-agent: KNode/0.10.1 wrote:
> The problem is because static data members need to be defined exactly
> once in every translation unit.

Nope! Static data members have to be defined exactly once in the
whole program. The only exception are constant integral expressions
whose address is never taken: these don't need any definition.
However, addresses are easily taken, e.g. by passing the value to a
function taking an 'int const&' as parameter. The best bet for a
constant integral expression which does not need a separate
definition is using an enum.
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