root / Pi / C / examples / capi / fibmodule.c @ 308
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| 1 | 7 | equemene | #include <Python.h> |
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| 2 | 7 | equemene | |
| 3 | 7 | equemene | int _fib(int n) |
| 4 | 7 | equemene | {
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| 5 | 7 | equemene | if (n < 2) |
| 6 | 7 | equemene | return n;
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| 7 | 7 | equemene | else
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| 8 | 7 | equemene | return _fib(n-1) + _fib(n-2); |
| 9 | 7 | equemene | } |
| 10 | 7 | equemene | |
| 11 | 7 | equemene | static PyObject* fib(PyObject* self, PyObject* args)
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| 12 | 7 | equemene | {
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| 13 | 7 | equemene | int n;
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| 14 | 7 | equemene | |
| 15 | 7 | equemene | if (!PyArg_ParseTuple(args, "i", &n)) |
| 16 | 7 | equemene | return NULL; |
| 17 | 7 | equemene | |
| 18 | 7 | equemene | return Py_BuildValue("i", _fib(n)); |
| 19 | 7 | equemene | } |
| 20 | 7 | equemene | |
| 21 | 7 | equemene | static PyMethodDef FibMethods[] = {
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| 22 | 7 | equemene | {"fib", fib, METH_VARARGS, "Calculate the Fibonacci numbers."},
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| 23 | 7 | equemene | {NULL, NULL, 0, NULL}
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| 24 | 7 | equemene | }; |
| 25 | 7 | equemene | |
| 26 | 7 | equemene | PyMODINIT_FUNC |
| 27 | 7 | equemene | initfib(void)
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| 28 | 7 | equemene | {
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| 29 | 7 | equemene | (void) Py_InitModule("fib", FibMethods); |
| 30 | 7 | equemene | } |