Edit Question - KnowledgeHub

Title Body

I know, there are often many ways to solve certain problems. But here I know which way I want to have it, but I am unable to make it work with Python and SWIG... I have a C-function, which returns me an array of double values: double *my(int x) { double a,b,*buf; buf = malloc (x * sizeof(double)); a=3.14; b=2.7; buf[0]=a; buf[1]=b; return buf; } Here, I definitively want to have the array as a return value. Not, as in many examples a 'void' function, which writes into an input array. Now, I would like to get a SWIG-python wrapper, which might be used as: >>> import example >>> print example.my(7) [3.14,2.7] Whatever I do, I have some conceptual problems here - I always get s.th. like <Swig Object of type 'double *' at 0xFABCABA12> I tried to define some typemaps in my swg file: %typemap(out) double [ANY] { int i; $result = PyList_New($1_dim0); for (i = 0; i < $1_dim0; i++) { PyObject *o = PyFloat_FromDouble((double) $1[i]); PyList_SetItem($result,i,o); } } But still I am unable to get out my results as required. Does anyone have a simple code-example to achieve this task?

Tags (comma-separated) Cancel