On 2020-02-07 4:06 p.m., HOUSSEN Franck wrote:
With boost python, how to pass a tuple of lists from python to C++ ?
Code attached : line 12 crashes ?! Googling but no fix for now.
You are referring to this line:
np::ndarray lsInt = boost::python::extract<np::ndarray>(t[0]);
Note that this line is actually doing two things:
1) it creates a boost::python::extract<np::ndarray> object
2) it calls conversion operator on it to convert to np::ndarray
Note that the conversion may fail (for example if the object doesn't
contain an object of that type). In case of doubt, you may want to call
extract::check() to see whether it's actually valid.
See
https://www.boost.org/doc/libs/1_72_0/libs/python/doc/html/reference/to_from_python_type_conversion.html#to_from_python_type_conversion.boost_python_extract_hpp.class_template_extract
for details.
Stefan
--
...ich hab' noch einen Koffer in Berlin...
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