I am new to C++/Python mixed language programming and do not have much idea
about Python/C API. I just started using Boost.Python to wrap a C++ library
for Python. I am stuck at wrapping a function that takes pointer to an array
as an argument. Following (2nd ctor) is its prototype in C++.
class AAF{
AAF(AAF_TYPE t);
AAF(double v0, const double * t1, const unsigned * t2, unsigned T);
~AAF();
}
Am I doing right by wrapping it like this in boost::python?
class_<AAF>("AAF", init<AAF_TYPE>())
.def(init<double, const double*, const unsigned*, unsigned>());
Note that it compiled and linked successfully, but I couldn't figure out how
to call it in Python. My naive tries like the following failed.
>>> z = AAF(10, [4, 5.5, 10], [1, 1, 2], 3);
Traceback (most recent call last):
File "./test_interval.py", line 40, in <module>
z = AAF(10, [4, 5.5, 10], [1, 1, 2], 3);
Boost.Python.ArgumentError: Python argument types in
AAF.__init__(AAF, int, list, list, int)
did not match C++ signature:
__init__(_object*, AAF_TYPE)
__init__(_object*, double, double const*, unsigned int const*, unsigned int)
>>> t1 = array.array('d', [4, 5.5, 10])
>>> t2 = array.array('I', [1, 1, 2])
>>> z = AAF(10, t1, t2, 3);
Traceback (most recent call last):
File "./test_interval.py", line 40, in <module>
z = AAF(10, t1, t2, 3);
Boost.Python.ArgumentError: Python argument types in
AAF.__init__(AAF, int, array.array, array.array, int)
did not match C++ signature:
__init__(_object*, AAF_TYPE)
__init__(_object*, double, double const*, unsigned int const*, unsigned int)
My second question is that do I also need to wrap the destructor? Please
specify if this might be necessary in some cases but not always.
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