> - is it possible to manipulate e.g. a STL vector created in
> compiled code with CINT ?
Yes.
> - is an explicit dictionnary generation like
> #pragma link C++ class vector<Int_t>!-;
> needed (as suggested on roottalk by Philippe Canal two years ago).
It is still needed (for the above case). The reason being is that (with a
couple of exception listed further) without generating the dictionary you
will end up using at the CINT level an interpreted version of the stl
container. The interpreted version is fully emulated and is quasi
guaranteed to have a different layout that the compiler generated version.
To make matter worse, CINT does not check per se (and maybe can not check)
whether your function expect a compiled or interpreted version. At any
rate, if you are using the interpreted version and try to pass it to a
compiled function, it is extremely likely to fail.
The exception is that you can (on some platform) have the dictionary for stl
container of numerical types (int, double, float, etc) generated for you by
making the cintdlls (gmake cintdlls in a ROOT distribution).
> - or is the only safe and sane way to deal with STL containers to use
> dynamically compiled code like
It is the safer way for dealing with the situation.
Cheers,
Philippe
-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Walter F.J. Mueller
Sent: Sunday, August 25, 2002 1:25 PM
To: roottalk@pcroot.cern.ch
Subject: [ROOT] Status of STL support in CINT
Dear all,
I'm having a few problems with STL vectors and CINT and wonder
whether there is somewhere a clear and precise description of
what is supported and working. A search of roottalk
wasn't very helpful. The page
http://root.cern.ch/root/Cint.phtml?limitations
states
"Please understand that there are many limitations for using STL on Cint.
STL is so complex that it is very difficult to document all limitations."
I wonder for example
- is it possible to manipulate e.g. a STL vector created in
compiled code with CINT ?
- is an explicit dictionnary generation like
#pragma link C++ class vector<Int_t>!-;
needed (as suggested on roottalk by Philippe Canal two years ago).
- or is the only safe and sane way to deal with STL containers to use
dynamically compiled code like
.L rootest.C++
Cheers, Walter
--
Walter F.J. Mueller Mail: W.F.J.Mueller@gsi.de
GSI, Abteilung KP3 Phone: +49-6159-71-2766
D-64291 Darmstadt FAX: +49-6159-71-2989
WWW: http://www-kp3.gsi.de/www/kp3/people/mueller.html
PGP: http://www-kp3.gsi.de/~mueller/pgp.shtml
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