[Numpy-discussion] numarray problem when compiling WrapITK external project PyBuffer

July 27, 2007

      (NumPy community, read on this only seems unrelated)

I use NumPy 1.0.3 , MSVC 2005 Express, ITK CVS from 23Jul2007, WrapITK for
Python only, wrap for the standard types plus signed short (imho that should
be switched on by default because many DICOM images are in that type). BTW I
had to include the /bigobj compiler switch in the CMakeLists.txt for ITK for
that to work. ItkVtkGlue compiled, but PyBuffer gave errors:

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

and 

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

at several occasions. At these line numbers, the numarray function
import_array() is called. I checked the numarray code and import_array() is
a #define that does not return a value:

#define import_array() {if (_import_array() < 0) {PyErr_Print();
PyErr_SetString(PyExc_ImportError, "numpy.core.multiarray failed to
import"); return; } }

I realize that's more a problem with numarray than PyBuffer. Since that's
inline-used the compiler is probably thwarted by the return inside the
macro. Consequently, if I replace the #define with a void to make it a real
function call PyBuffer compiles just fine. 

Thanks,

Sven

Here is the whole build log:

1>------ Build started: Project: _BufferConversionPython, Configuration:
Release Win32 ------

1>Generating wrap_itkPyBuffer.xml

1>Generating wrap_itkPyBuffer.idx

1>Generating wrap_itkPyBufferPython.cxx

1>Generating wrap_BufferConversionPythonPython.cxx

1>create swig package BufferConversionPython

1>  init module: itkPyBuffer

1>Compiling...

1>wrap_itkPyBufferPython.cxx

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,3>,

1>            TPixel=unsigned char,

1>            VImageDimension=3

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(1542) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<unsigned char,3>,

1>            TImage=itk::Image<unsigned char,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<float,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<float,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<float,3>,

1>            TPixel=float,

1>            VImageDimension=3

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(1646) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<float,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<float,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<float,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<float,3>,

1>            TImage=itk::Image<float,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<float,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<float,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<float,2>,

1>            TPixel=float,

1>            VImageDimension=2

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(1750) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<float,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<float,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<float,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<float,2>,

1>            TImage=itk::Image<float,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,3>,

1>            TPixel=unsigned short,

1>            VImageDimension=3

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(1854) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<unsigned short,3>,

1>            TImage=itk::Image<unsigned short,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,2>,

1>            TPixel=unsigned char,

1>            VImageDimension=2

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(1958) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<unsigned char,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<unsigned char,2>,

1>            TImage=itk::Image<unsigned char,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,2>,

1>            TPixel=unsigned short,

1>            VImageDimension=2

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(2062) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<unsigned short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<unsigned short,2>,

1>            TImage=itk::Image<unsigned short,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<short,3>,

1>            TPixel=short,

1>            VImageDimension=3

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(2151) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<short,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<short,3>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<short,3>,

1>            TImage=itk::Image<short,3>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(46) : error C2561: 'itk::PyBuffer<TImage>::GetArrayFromImage'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(73) : see declaration of
'itk::PyBuffer<TImage>::GetArrayFromImage'

1>        with

1>        [

1>            TImage=itk::Image<short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(38) : while compiling class template member function 'PyObject
*itk::PyBuffer<TImage>::GetArrayFromImage(itk::Image<TPixel,VImageDimension>
*)'

1>        with

1>        [

1>            TImage=itk::Image<short,2>,

1>            TPixel=short,

1>            VImageDimension=2

1>        ]

1>        .\wrap_itkPyBufferPython.cxx(2240) : see reference to class
template instantiation 'itk::PyBuffer<TImage>' being compiled

1>        with

1>        [

1>            TImage=itk::Image<short,2>

1>        ]

1>c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\i
tkPyBuffer.txx(77) : error C2561: 'itk::PyBuffer<TImage>::GetImageFromArray'
: function must return a value

1>        with

1>        [

1>            TImage=itk::Image<short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.h(78) : see declaration of
'itk::PyBuffer<TImage>::GetImageFromArray'

1>        with

1>        [

1>            TImage=itk::Image<short,2>

1>        ]

1>
c:\users\sprevrha\src\insight\wrapping\wrapitk\externalprojects\pybuffer\itk
PyBuffer.txx(75) : while compiling class template member function 'const
itk::SmartPointer<TObjectType>
itk::PyBuffer<TImage>::GetImageFromArray(PyObject *)'

1>        with

1>        [

1>            TObjectType=itk::Image<short,2>,

1>            TImage=itk::Image<short,2>

1>        ]

1>wrap_BufferConversionPythonPython.cxx

1>Generating Code...

1>Build log was saved at
"file://c:\packages\Insight-CVS-VC2005-WrapITK-ExternalProjects\PyBuffer\_Bu
fferConversionPython.dir\Release\BuildLog.htm"

1>_BufferConversionPython - 16 error(s), 0 warning(s)

2>------ Build started: Project: ALL_BUILD, Configuration: Release Win32
------

2>"Build all projects"

2>Build log was saved at
"file://c:\packages\Insight-CVS-VC2005-WrapITK-ExternalProjects\PyBuffer\ALL
_BUILD.dir\Release\BuildLog.htm"

2>ALL_BUILD - 0 error(s), 0 warning(s)

========== Build: 1 succeeded, 1 failed, 2 up-to-date, 0 skipped ==========

[Numpy-discussion] numarray problem when compiling WrapITK external project PyBuffer

Sven Prevrhal