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List:       kde-commits
Subject:    Re: kdebase/kioslave/sftp
From:       Frerich Raabe <frerich.raabe () gmx ! de>
Date:       2004-10-06 13:44:46
Message-ID: 200410061544.47044.frerich.raabe () gmx ! de
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On Wednesday 06 October 2004 12:05, Nicolas Goutte wrote:
> Well, min and max can only be created in 2 way:
> - by macros (Qt's way)
> - by templates (KDE's way)

In Qt4, both are being used. There are templates, and to avoid the annoying 
type warnings there is a bunch of overloads. AFAIK, this is the most portable 
solution to solve this problem. The downside of this is that it's dull to 
write all those boring overloads, but then - TT does that for us, so why 
should we care. :-)

I think passing a second template argument would be even nicer, as in

template <typename T, typename U>
/* ??? */ kMin( T a, U b ) { return a < b ? a : b; }

but the problem is the ??? part, I don't know what to return. :-)

Maybe one can simply always return something of type T - assuming that U can 
be converted to a T - but I don't feel comfortable with that really. Maybe 
somebody else on this list knows a nice trick to solve this (other than 
returning a struct which has a 'Result' typedef referring to the actual type 
of the returned value, or equally impractical things).

- Frerich
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