Re: friend operators

[Bernd Speiser <bernd.speiser@uni-tuebingen.de>]

Gokhan Kisacikoglu wrote:
> 
> > void operator<< (string &);
> 
> if you encapsulate it within a namespace, don't, it doesn't seem to
> work, you should declare this operator globally for it to work, I've
> seen this work with other compilers, but not with gcc...
> 
 
Thanks for this information. However, I need the namespace in this case.

I've kind of solved the problem in the meantime (following a suggestion
mentioned
in the gcc-bugs mailinglist:
I declare ALL operator<< functions in this class to be friends. Of course, this
means that those taking the class itself as a first argument, I have to give the
class explicitly
such as

friend void operator<< (Quantity &, string &);
friend istream & operator<< (Quantity &, istream &);

so I can write

Quantity Q;

Q << "something";

istream is;

Q << is;


etc.

Bernd

>

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Bernd Speiser
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