Re: [Mingw-users] Other algorithm functions in the global namespace?

[Al S. <al...@al...>]

That's what it is, all right. Thanks. I keep forgetting about Koenig lookup,
and I keep getting fooled by it. That's because I've never read a cogent
explanation of what problem it solves. Another reading assignment, I fear.

Al Stevens


----- Original Message -----
From: "Esa Vuokko" <eiv...@bo...>
To: "Al Stevens" <al...@al...>; <min...@li...>
Sent: Monday, December 02, 2002 4:56 PM
Subject: Re: [Mingw-users] Other algorithm functions in the global
namespace?


> Al Stevens wrote:
> | I'm using 3.2. Try this one:
> |
> | #include <vector>
> | #include <algorithm>
> |
> | int main() {
> |   std::vector<int> vi(10);
> |   std::vector<int>::iterator k;
> |   fill(k, k + 10, 0);
> | }
> |
> | All the algorithm functions, when used with STL iterators, seem to be in
> the
> | global namespace. That's a bug.
>
>
> It's called argument dependant name lookup aka Koenig
> lookup. See 3.2.4 in standard.
>
> In principle, it searches namespaces where arguments are
> located for to find the function.  This is quite nicely explained
> by Herb Sutter here :
> http://www.gotw.ca/gotw/030.htm
>
> HTH,
> Esa
>
> ----------------------------------------------------------
> Esa Ilari Vuokko                          +358-50-544 8847
> esa...@bo...
> Bonum IT Oy                                www.bonumit.com
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