[Qt-interest] include modules vs. files

[Arnold Krille]

Hi,

On Tuesday 03 February 2009 00:07:06 Israel Brewster wrote:
> When looking at the help files for, say, QLineEdit, you see that it is
> in a specific module (QtGui), as well as the specific header for the
> module (QLineEdit). If you are only using a handful of object types in
> your application, is there an advantage to #including just the
> specific headers you need, rather than the entire module? Or would
> that just be wasted effort with no benefit? I would imagine that the
> executable size might be somewhat smaller, but I would like
> confirmation (or refutation) of this. Thanks!

Apart from the other answers (specific includes = less compile time and less 
dependencies): I use the absolutely necessary includes in the normal 
"production" files (so mostly its only QWidget or QObject that is included in 
the header of my classes). And I use the generic includes only for the small 
test-apps or during development of a new widget or a new concept (to not spend 
to much time fixing missing includes when a lot of stuff is still changing).

Have fun,

Arnold
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