Re: [Boost-users] "using namespace" in template implementation files

From: Mauricio Gomes (mg_at_[hidden])
Date: 2004-08-05 09:21:31

Dear Erik,

May I suggest you try comp.lang.c++ forum, below is the URL:
http://groups.google.com/groups?hl=en&lr=&ie=UTF 
-8&group=comp.lang.c%2B%2B

This forum is more boost specific and I think you may have a better  
response posting into comp.lang.c++

Best regards,
Mauricio Gomes

On Aug 5, 2004, at 10:27 AM, Erik Thiele wrote:

> hi
>
> i don't find any docs about that issue, so i ask it here:
>
> the usual approach to work with templates and separated
> interface and implementation is as follows (i hope):
>
> x.hpp:
>
> template<class a> void foo(std::string xxx);
> #include "x_impl.hpp"
>
>
> x_impl.hpp:
>
> template<class a> void foo(std::string xxx)
> {
>   string bla = xxx + "sdjkfh"; // <-- no std:: here !!!!
>   cout << bla;
> }
>
>
>
> usually in normal non-template coding style i can do
>
> using namespace std;
>
> on the top of each .cpp file. but now i cannot do it, because it is
> actually in a header file and i don't want to include another namespace
> in the interface definition.
>
> how can i solve the problem? i don't want to write "using namespace  
> std"
> at the beginning of every template function declaration, but only once
> per implementation file.
>
>
> cu & thx
> erik
>
>
> -- 
> Erik Thiele
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>

Mauricio Gomes
Pensar Digital
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