Hi everyone. I'm new to SWIG, and I'm trying to wrap a C library for
Python.
I have a function that is declared similarly to this:
double *foo(int x);
The function returns a pointer to an array of 7 double values. I want
to return a 7-tuple to Python. I've been trying variations of the
following typemap, but I get a segmentation fault when I try it.
(It's been awhile since I've done any C, so it may be an obvious C
error, I'm not sure.)
Can anyone tell me what's wrong, or just show me how to accomplish
what I'm after? I'd appreciate it a lot. Thank you.
%typemap(python, out) double* {
int i;
PyObject *o = PyTuple_New(7);
for(i = 0; i < 7; i++) {
PyObject *o2 = PyFloat_FromDouble((double)$1[i]);
PyTuple_SET_ITEM(o, i, o2);
}
$result = o;
}
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