[C++-sig] Pyste suggestion: MSVC precompiled headers support
s_sourceforge at nedprod.com
Thu Oct 9 02:57:34 CEST 2003
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On 8 Oct 2003 at 18:27, Nicodemus wrote:
> #include <boost/python.hpp>
> #include <boost/cstdint.hpp>
> #ifdef _MSC_VER
> #pragma hdrstop
> #include <A.h>
> works for me. I thought that everything before #hdrstop would be
> *included* in the pre-compiled header, not excluded. But I don't see
> that happening, the code compiles fine.
Try generating a .pch file from some completely unrelated piece of
code. Then try compiling the above using that pch file instead. You
should get lots of errors.
Note that when you create a .pch file it still compiles whatever file
you're doing - it just spits out the .pch file at the same time.
> >If you could always get pyste to start off with *exactly* the same
> >#include's in the same order across all modules, then we don't need
> >this feature. I had been assuming that the mechanism I proposed was
> >easier and better extensible for the future.
> Well, this headers are included always first:
Err, they're not here. The first include is always the one the
Class() or AllFromHeader() has pulled in, which is invariably not
global across all modules.
BTW is AllFromHeader() fixed yet?
> And I guess you could easily create a header, named "mylib.h", that
> includes everything else. So your pyste files would always just use
> this header to look for the classes/functions. Notice too that with
> the new --cache-dir option, GCCXML would be called only once for
> "mylib.h". With this, I guess using pre-compiled headers would be
> possible, right?
That causes extra recompiles. If I alter some header higher up, it
means I must recompile ALL my modules instead of the one it actually
affects. I'd prefer to avoid that please.
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