Hi,
I am trying to work with cython. I have the following code:
from sage.libs.ntl.ntl_ZZ cimport ntl_ZZ
cdef ntl_ZZ dummy(ntl_ZZ a, int b):
return a
If I compile it with sage -b I get the following error:
building
'sage.rings.polynomial.polynomial_absolute_number_field_dense'
extension
gcc -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -
fPIC -I/opt/SAGE/sage/local//include -I/opt/SAGE/sage/local//include/
csage -I/opt/SAGE/sage/devel//sage/sage/ext -I/opt/SAGE/sage/local/
include/python2.6 -c sage/rings/polynomial/
polynomial_absolute_number_field_dense.c -o build/temp.linux-i686-2.6/
sage/rings/polynomial/polynomial_absolute_number_field_dense.o -w
sage/rings/polynomial/polynomial_absolute_number_field_dense.c:304:
error: field ‘x’ has incomplete type
The relevant line in the code says:
/* Type declarations */
/* "/opt/SAGE/sage-4.3.3/devel/sage-luisfe/sage/libs/ntl/ntl_ZZ.pxd":4
* include "decl.pxi"
*
* cdef class ntl_ZZ: # <<<<<<<<<<<<<<
* cdef ZZ_c x
* cdef public int get_as_int(ntl_ZZ self)
*/
struct __pyx_obj_4sage_4libs_3ntl_6ntl_ZZ_ntl_ZZ {
PyObject_HEAD
struct __pyx_vtabstruct_4sage_4libs_3ntl_6ntl_ZZ_ntl_ZZ *__pyx_vtab;
struct ZZ x;
};
I am not sure if this is a bug with cython or a Im doing wrong the
import statementes. Any hint?
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