Boost Python and MS Visual Studio 7 - hit compiler limit

[Stephen Horne]

I started making up a Python extension module to wrap a C++ library of
mine using Boost Python. Trouble is, the library has a number of
classes each of which has a lot of methods. I seem to have hit an
internal limit in the Visual C++ 7 compiler.

The output I get is...

"""
....found 2031 targets...
....updating 4 targets...
vc-C++
...\..\..\libs\python\my_project\bin\hello.pyd\vc7 \debug\runtime-link-dyna
mic\test.obj
test.cpp
E:\boost-1.30.2\boost\detail\ob_compressed_pair.hpp(368) : fatal error
C1204: co
mpiler limit : internal structure overflow
"""
I figure I have three obvious options...

1. Switch to using Pythons C API directly.
2. Change the way I wrap the library to reduce the number of
methods (most likely with extra parameters).
3. Use a different compiler.
Can anyone offer any suggestions beyond that? - options to increase
the VC++ internal structure sizes, for instance?

[Stephen Horne]

Sorry - the correct answer is RTFM, but I somehow missed the bit in
the Boost Python FAQ first time through. It's working fine now.

[David Abrahams]

Stephen Horne <$$$$$$$$$$$$$$$$$@$$$$$$$$$$$$$$$$$$$$.co.uk> writes:

I started making up a Python extension module to wrap a C++ library of
mine using Boost Python. Trouble is, the library has a number of
classes each of which has a lot of methods. I seem to have hit an
internal limit in the Visual C++ 7 compiler.

The output I get is...

"""
...found 2031 targets...
...updating 4 targets...
vc-C++
..\..\..\libs\python\my_project\bin\hello.pyd\vc7\ debug\runtime-link-dyna
mic\test.obj
test.cpp
E:\boost-1.30.2\boost\detail\ob_compressed_pair.hpp(368) : fatal error
C1204: co
mpiler limit : internal structure overflow
"""
I figure I have three obvious options...

1. Switch to using Pythons C API directly.
2. Change the way I wrap the library to reduce the number of
methods (most likely with extra parameters).
3. Use a different compiler.
Can anyone offer any suggestions beyond that? - options to increase
the VC++ internal structure sizes, for instance?

Stephen, I suggest you post your Boost.Python questions to the
C++-sig: http://www.boost.org/more/mailing_lists.htm#cplussig

The Boost.Python FAQ addresses your question:
http://www.boost.org/libs/python/doc/v2/faq.html#c1204

HTH,
--
Dave Abrahams
Boost Consulting
www.boost-consulting.com