From: Anthony Williams (anthwil_at_[hidden])
Date: 2002-09-17 10:26:08
Markus Schöpflin writes:
> Jaap Suter wrote:
> >
> > I think http://www.boost.org/more/int_const_guidelines.htm will help you
> > out...
> >
>
> Either I'm too blind to see it or it is not there.
>
> But reading the bible (read: the c++ standard), section 5.19 tells
> me that is should look in 9.4.2 (static data members). And sentence
> 4 of 9.4.2 tells me that "The member shall [still] be defined in
> namespace scope if it is used in the program ..."
>
> 14.5.1.3 (Static data members of class templates) says that
> "A definition for a static data member may be provided in a
> namespace scope enclosing the definition of the static member's
> class template."
>
> So this looks like the code I posted should be legal?
Yes this is legal. The restriction that "there shall be exactly one definition
of a static data member that is used in a program; no diagnostic required",
does not apply to static data members of templates, so long as the duplicate
definitions are in every sense identical (see 3.2p5).
Anthony