🚀 go-pugleaf

"Charles F. McDevitt" <Chuck.McDevitt@elsegundoca.attgis.com> writes:

>Wouldn't it be better to update the C++ standard so the
>default is that include files only get included once, and the
>compiler/preprocessor keeps track of which ones it's already 
>seen.  Then we wouldn't have to mess with these ugly #ifdefs
>to make include files only be included once.

Not necessarily a good idea. What about if another header file adds a define
and running thru the header file a second time includes a different contents
than the first time around.
This is a very common practice in imake config files for example, which use
the preprocessor from C to process all the include files. And it would have
to be the preprocessor to take care of the tracking.
I can't imagine what a nightmare that would be to get some of the old
stuff to compile ;-) - not that I think that this is a very good coding
practice.

							Jan


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