Re: [Swig-user] octave + swig svn still some crashers...

[Xavier D. <xav...@gm...>]

That's great that you've made such progress on this.

The crash here looks like a bug with the octave director
implementation. I don't have time right now, but I'll dig into it a
bit later today or tomorrow.

Thanks,
Xavier

On Thu, Apr 17, 2008 at 6:38 AM, Soeren Sonnenburg <swi...@nn...> wrote:
> Hi Xavier,
>
>  (cc'ing the list).
>
>  Thanks to your help I've now completed the swig based octave interface
>  for shogun and just ported all examples from python.
>
>  While indeed most of the things work, there seems to be an infinity
>  recursion problem:
>  #0  0xb58afbfc in _int_malloc () from /lib/i686/cmov/libc.so.6
>  #1  0xb58b1b1d in malloc () from /lib/i686/cmov/libc.so.6
>  #2  0xb5a58e47 in operator new () from /usr/lib/libstdc++.so.6
>  #3  0xb7145893 in charNDArray::matrix_value () from /usr/lib/octave-3.0.0/liboctave.so
>  #4  0xb79cc20b in octave_char_matrix_str::string_value () from /usr/lib/octave-3.0.0/liboctinterp.so
>  #5  0xb47681f0 in subsref (this=0xb873038, ops=@0xbf6a2500, idx=@0xbf6a24f4, nargout=1) at /usr/include/octave-3.0.0/octave/ov.h:703
>  #6  0xb52626bd in SwigDirector_LibSVM::train (this=0xb872f18) at regression/Regression_wrap.cxx:3988
>  #7  0xb47d07a8 in _wrap_LibSVM_train (args=@0xbf6a26f4, nargout=1) at classifier/Classifier_wrap.cxx:32440
>  #8  0xb476696b in member_invoke (this=<value optimized out>, m=0xb72aaec, args=@0xbf6a26f4, nargout=1) at classifier/Classifier_wrap.cxx:1012
>  #9  0xb4768e64 in subsref (this=0xb873038, ops=@0xbf6a28b0, idx=@0xbf6a28a4, nargout=1) at classifier/Classifier_wrap.cxx:1309
>  #10 0xb52626bd in SwigDirector_LibSVM::train (this=0xb872f18) at regression/Regression_wrap.cxx:3988
>  #11 0xb47d07a8 in _wrap_LibSVM_train (args=@0xbf6a2aa4, nargout=1) at classifier/Classifier_wrap.cxx:32440
>  #12 0xb476696b in member_invoke (this=<value optimized out>, m=0xb72aaec, args=@0xbf6a2aa4, nargout=1) at classifier/Classifier_wrap.cxx:1012
>  #13 0xb4768e64 in subsref (this=0xb873038, ops=@0xbf6a2c60, idx=@0xbf6a2c54, nargout=1) at classifier/Classifier_wrap.cxx:1309
>  #14 0xb52626bd in SwigDirector_LibSVM::train (this=0xb872f18) at regression/Regression_wrap.cxx:3988
>  #15 0xb47d07a8 in _wrap_LibSVM_train (args=@0xbf6a2e54, nargout=1) at classifier/Classifier_wrap.cxx:32440
>  [a couple of thousand lines the same stuff]
>
>  I've uploaded a snapshot of shogun:
>
>  wget http://nn7.de/debugging/shogun-0.6.1+svn2882.tar.bz2
>  tar xjf shogun-0.6.1+svn2882.tar.bz2
>  cd shogun-0.6.1+svn2882/src
>  ./configure --interface=octave-modular
>  make
>  [sudo make install] or in octave addpath features; addpath classifier;
>  addpath kernels; addpath regression;
>
>  then have a look at the example examples/octave-modular/libsvm.m
>
>  as soon as Regression is uncommented it crashes. A reason could be that
>  some of the classes in Regression, e.g. CLibSVR are derived from classes
>  also defined in Classifier (CSVM) so there could be some clash again...
>
>  Any ideas?
>
>  But still most of the things work - impressive!
>  Soeren
>