On Sun, Apr 12, 2009 at 01:04:36PM +0200, Vincent van Ravesteijn wrote:
> If you are at it, could you then also explain when we should use
> QLatin1String.
When one wants to avoid implicit conversations (preferably accompanied
with #defined QT_NO_CAST_{FROM,TO}_ASCII - all of Qt itself uses that
for instance). It also saves one typically not-inlined function call
(but I've never seen a performance impact from _that_).
> A few lines above, there is the line QString rc =
> QLatin1String("background:") ? Does this have an added value or should
> we just use QString rc("background:") ?
The downside is that it is ugly as hell.
Being able to use QT_NO_CAST_{FROM,TO}_ASCII it pretty helpful to
prevent "accidental" and hard-to-track-down QString <-> QByteArray
conversions, but unfortunately it requires all literals to be
"decorated" by QLatin1String)
Andre'
