From kde-devel  Sun May 29 13:43:04 2005
From: Nicos Gollan <gtdev () spearhead ! de>
Date: Sun, 29 May 2005 13:43:04 +0000
To: kde-devel
Subject: Re: Use true/false or TRUE/FALSE in KDE C++ programs?
Message-Id: <200505291543.15945.gtdev () spearhead ! de>
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On Sunday May 29 2005 13:27, Richard Dale wrote:
> I was wondering if there was a more correct boolean literal to use. I
> noticed that the Qt docs have upper case booleans, but when I searched the
> sources in kdelibs there were more instances of lower case ones.

The thing with Qt is that it doesn't assume any standard-C++ features like=
=20
namespaces, a working STL implementation or the standard boolean type "bool=
"=20
to be present, so it defines its own of everything (just have a look at the=
=20
comments in the Qt sources for the declaration of the class "Qt" in=20
qnamespace.h to get the idea of not using namespaces). By using the upperca=
se=20
variety, it avoids ambiguities on systems which do have a "bool" type with=
=20
true/false values.

The correct literals by the C++ standard are the lowercase true/false value=
s,=20
but that might cause problems on systems with Really Old(TM) compilers unle=
ss=20
you handle that somehow, e.g. with autotools.

=2D-=20
Got Backup?

Jabber: Shadowdancer at jabber.fsinf.de

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