diff options
Diffstat (limited to '.venv/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd')
| -rw-r--r-- | .venv/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd | 1241 |
1 files changed, 1241 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd b/.venv/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd new file mode 100644 index 0000000..86c91cf --- /dev/null +++ b/.venv/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd @@ -0,0 +1,1241 @@ +# NumPy static imports for Cython >= 3.0 +# +# If any of the PyArray_* functions are called, import_array must be +# called first. This is done automatically by Cython 3.0+ if a call +# is not detected inside of the module. +# +# Author: Dag Sverre Seljebotn +# + +from cpython.ref cimport Py_INCREF +from cpython.object cimport PyObject, PyTypeObject, PyObject_TypeCheck +cimport libc.stdio as stdio + + +cdef extern from *: + # Leave a marker that the NumPy declarations came from NumPy itself and not from Cython. + # See https://github.com/cython/cython/issues/3573 + """ + /* Using NumPy API declarations from "numpy/__init__.cython-30.pxd" */ + """ + + +cdef extern from "numpy/arrayobject.h": + # It would be nice to use size_t and ssize_t, but ssize_t has special + # implicit conversion rules, so just use "long". + # Note: The actual type only matters for Cython promotion, so long + # is closer than int, but could lead to incorrect promotion. + # (Not to worrying, and always the status-quo.) + ctypedef signed long npy_intp + ctypedef unsigned long npy_uintp + + ctypedef unsigned char npy_bool + + ctypedef signed char npy_byte + ctypedef signed short npy_short + ctypedef signed int npy_int + ctypedef signed long npy_long + ctypedef signed long long npy_longlong + + ctypedef unsigned char npy_ubyte + ctypedef unsigned short npy_ushort + ctypedef unsigned int npy_uint + ctypedef unsigned long npy_ulong + ctypedef unsigned long long npy_ulonglong + + ctypedef float npy_float + ctypedef double npy_double + ctypedef long double npy_longdouble + + ctypedef signed char npy_int8 + ctypedef signed short npy_int16 + ctypedef signed int npy_int32 + ctypedef signed long long npy_int64 + + ctypedef unsigned char npy_uint8 + ctypedef unsigned short npy_uint16 + ctypedef unsigned int npy_uint32 + ctypedef unsigned long long npy_uint64 + + ctypedef float npy_float32 + ctypedef double npy_float64 + ctypedef long double npy_float80 + ctypedef long double npy_float96 + ctypedef long double npy_float128 + + ctypedef struct npy_cfloat: + pass + + ctypedef struct npy_cdouble: + pass + + ctypedef struct npy_clongdouble: + pass + + ctypedef struct npy_complex64: + pass + + ctypedef struct npy_complex128: + pass + + ctypedef struct npy_complex160: + pass + + ctypedef struct npy_complex192: + pass + + ctypedef struct npy_complex256: + pass + + ctypedef struct PyArray_Dims: + npy_intp *ptr + int len + + + cdef enum NPY_TYPES: + NPY_BOOL + NPY_BYTE + NPY_UBYTE + NPY_SHORT + NPY_USHORT + NPY_INT + NPY_UINT + NPY_LONG + NPY_ULONG + NPY_LONGLONG + NPY_ULONGLONG + NPY_FLOAT + NPY_DOUBLE + NPY_LONGDOUBLE + NPY_CFLOAT + NPY_CDOUBLE + NPY_CLONGDOUBLE + NPY_OBJECT + NPY_STRING + NPY_UNICODE + NPY_VSTRING + NPY_VOID + NPY_DATETIME + NPY_TIMEDELTA + NPY_NTYPES_LEGACY + NPY_NOTYPE + + NPY_INT8 + NPY_INT16 + NPY_INT32 + NPY_INT64 + NPY_UINT8 + NPY_UINT16 + NPY_UINT32 + NPY_UINT64 + NPY_FLOAT16 + NPY_FLOAT32 + NPY_FLOAT64 + NPY_FLOAT80 + NPY_FLOAT96 + NPY_FLOAT128 + NPY_COMPLEX64 + NPY_COMPLEX128 + NPY_COMPLEX160 + NPY_COMPLEX192 + NPY_COMPLEX256 + + NPY_INTP + NPY_UINTP + NPY_DEFAULT_INT # Not a compile time constant (normally)! + + ctypedef enum NPY_ORDER: + NPY_ANYORDER + NPY_CORDER + NPY_FORTRANORDER + NPY_KEEPORDER + + ctypedef enum NPY_CASTING: + NPY_NO_CASTING + NPY_EQUIV_CASTING + NPY_SAFE_CASTING + NPY_SAME_KIND_CASTING + NPY_UNSAFE_CASTING + + ctypedef enum NPY_CLIPMODE: + NPY_CLIP + NPY_WRAP + NPY_RAISE + + ctypedef enum NPY_SCALARKIND: + NPY_NOSCALAR, + NPY_BOOL_SCALAR, + NPY_INTPOS_SCALAR, + NPY_INTNEG_SCALAR, + NPY_FLOAT_SCALAR, + NPY_COMPLEX_SCALAR, + NPY_OBJECT_SCALAR + + ctypedef enum NPY_SORTKIND: + NPY_QUICKSORT + NPY_HEAPSORT + NPY_MERGESORT + + ctypedef enum NPY_SEARCHSIDE: + NPY_SEARCHLEFT + NPY_SEARCHRIGHT + + enum: + NPY_ARRAY_C_CONTIGUOUS + NPY_ARRAY_F_CONTIGUOUS + NPY_ARRAY_OWNDATA + NPY_ARRAY_FORCECAST + NPY_ARRAY_ENSURECOPY + NPY_ARRAY_ENSUREARRAY + NPY_ARRAY_ELEMENTSTRIDES + NPY_ARRAY_ALIGNED + NPY_ARRAY_NOTSWAPPED + NPY_ARRAY_WRITEABLE + NPY_ARRAY_WRITEBACKIFCOPY + + NPY_ARRAY_BEHAVED + NPY_ARRAY_BEHAVED_NS + NPY_ARRAY_CARRAY + NPY_ARRAY_CARRAY_RO + NPY_ARRAY_FARRAY + NPY_ARRAY_FARRAY_RO + NPY_ARRAY_DEFAULT + + NPY_ARRAY_IN_ARRAY + NPY_ARRAY_OUT_ARRAY + NPY_ARRAY_INOUT_ARRAY + NPY_ARRAY_IN_FARRAY + NPY_ARRAY_OUT_FARRAY + NPY_ARRAY_INOUT_FARRAY + + NPY_ARRAY_UPDATE_ALL + + cdef enum: + NPY_MAXDIMS # 64 on NumPy 2.x and 32 on NumPy 1.x + NPY_RAVEL_AXIS # Used for functions like PyArray_Mean + + ctypedef void (*PyArray_VectorUnaryFunc)(void *, void *, npy_intp, void *, void *) + + ctypedef struct PyArray_ArrayDescr: + # shape is a tuple, but Cython doesn't support "tuple shape" + # inside a non-PyObject declaration, so we have to declare it + # as just a PyObject*. + PyObject* shape + + ctypedef struct PyArray_Descr: + pass + + ctypedef class numpy.dtype [object PyArray_Descr, check_size ignore]: + # Use PyDataType_* macros when possible, however there are no macros + # for accessing some of the fields, so some are defined. + cdef PyTypeObject* typeobj + cdef char kind + cdef char type + # Numpy sometimes mutates this without warning (e.g. it'll + # sometimes change "|" to "<" in shared dtype objects on + # little-endian machines). If this matters to you, use + # PyArray_IsNativeByteOrder(dtype.byteorder) instead of + # directly accessing this field. + cdef char byteorder + cdef int type_num + + @property + cdef inline npy_intp itemsize(self) noexcept nogil: + return PyDataType_ELSIZE(self) + + @property + cdef inline npy_intp alignment(self) noexcept nogil: + return PyDataType_ALIGNMENT(self) + + # Use fields/names with care as they may be NULL. You must check + # for this using PyDataType_HASFIELDS. + @property + cdef inline object fields(self): + return <object>PyDataType_FIELDS(self) + + @property + cdef inline tuple names(self): + return <tuple>PyDataType_NAMES(self) + + # Use PyDataType_HASSUBARRAY to test whether this field is + # valid (the pointer can be NULL). Most users should access + # this field via the inline helper method PyDataType_SHAPE. + @property + cdef inline PyArray_ArrayDescr* subarray(self) noexcept nogil: + return PyDataType_SUBARRAY(self) + + @property + cdef inline npy_uint64 flags(self) noexcept nogil: + """The data types flags.""" + return PyDataType_FLAGS(self) + + + ctypedef class numpy.flatiter [object PyArrayIterObject, check_size ignore]: + # Use through macros + pass + + ctypedef class numpy.broadcast [object PyArrayMultiIterObject, check_size ignore]: + + @property + cdef inline int numiter(self) noexcept nogil: + """The number of arrays that need to be broadcast to the same shape.""" + return PyArray_MultiIter_NUMITER(self) + + @property + cdef inline npy_intp size(self) noexcept nogil: + """The total broadcasted size.""" + return PyArray_MultiIter_SIZE(self) + + @property + cdef inline npy_intp index(self) noexcept nogil: + """The current (1-d) index into the broadcasted result.""" + return PyArray_MultiIter_INDEX(self) + + @property + cdef inline int nd(self) noexcept nogil: + """The number of dimensions in the broadcasted result.""" + return PyArray_MultiIter_NDIM(self) + + @property + cdef inline npy_intp* dimensions(self) noexcept nogil: + """The shape of the broadcasted result.""" + return PyArray_MultiIter_DIMS(self) + + @property + cdef inline void** iters(self) noexcept nogil: + """An array of iterator objects that holds the iterators for the arrays to be broadcast together. + On return, the iterators are adjusted for broadcasting.""" + return PyArray_MultiIter_ITERS(self) + + + ctypedef struct PyArrayObject: + # For use in situations where ndarray can't replace PyArrayObject*, + # like PyArrayObject**. + pass + + ctypedef class numpy.ndarray [object PyArrayObject, check_size ignore]: + cdef __cythonbufferdefaults__ = {"mode": "strided"} + + # NOTE: no field declarations since direct access is deprecated since NumPy 1.7 + # Instead, we use properties that map to the corresponding C-API functions. + + @property + cdef inline PyObject* base(self) noexcept nogil: + """Returns a borrowed reference to the object owning the data/memory. + """ + return PyArray_BASE(self) + + @property + cdef inline dtype descr(self): + """Returns an owned reference to the dtype of the array. + """ + return <dtype>PyArray_DESCR(self) + + @property + cdef inline int ndim(self) noexcept nogil: + """Returns the number of dimensions in the array. + """ + return PyArray_NDIM(self) + + @property + cdef inline npy_intp *shape(self) noexcept nogil: + """Returns a pointer to the dimensions/shape of the array. + The number of elements matches the number of dimensions of the array (ndim). + Can return NULL for 0-dimensional arrays. + """ + return PyArray_DIMS(self) + + @property + cdef inline npy_intp *strides(self) noexcept nogil: + """Returns a pointer to the strides of the array. + The number of elements matches the number of dimensions of the array (ndim). + """ + return PyArray_STRIDES(self) + + @property + cdef inline npy_intp size(self) noexcept nogil: + """Returns the total size (in number of elements) of the array. + """ + return PyArray_SIZE(self) + + @property + cdef inline char* data(self) noexcept nogil: + """The pointer to the data buffer as a char*. + This is provided for legacy reasons to avoid direct struct field access. + For new code that needs this access, you probably want to cast the result + of `PyArray_DATA()` instead, which returns a 'void*'. + """ + return PyArray_BYTES(self) + + + int _import_array() except -1 + # A second definition so _import_array isn't marked as used when we use it here. + # Do not use - subject to change any time. + int __pyx_import_array "_import_array"() except -1 + + # + # Macros from ndarrayobject.h + # + bint PyArray_CHKFLAGS(ndarray m, int flags) nogil + bint PyArray_IS_C_CONTIGUOUS(ndarray arr) nogil + bint PyArray_IS_F_CONTIGUOUS(ndarray arr) nogil + bint PyArray_ISCONTIGUOUS(ndarray m) nogil + bint PyArray_ISWRITEABLE(ndarray m) nogil + bint PyArray_ISALIGNED(ndarray m) nogil + + int PyArray_NDIM(ndarray) nogil + bint PyArray_ISONESEGMENT(ndarray) nogil + bint PyArray_ISFORTRAN(ndarray) nogil + int PyArray_FORTRANIF(ndarray) nogil + + void* PyArray_DATA(ndarray) nogil + char* PyArray_BYTES(ndarray) nogil + + npy_intp* PyArray_DIMS(ndarray) nogil + npy_intp* PyArray_STRIDES(ndarray) nogil + npy_intp PyArray_DIM(ndarray, size_t) nogil + npy_intp PyArray_STRIDE(ndarray, size_t) nogil + + PyObject *PyArray_BASE(ndarray) nogil # returns borrowed reference! + PyArray_Descr *PyArray_DESCR(ndarray) nogil # returns borrowed reference to dtype! + PyArray_Descr *PyArray_DTYPE(ndarray) nogil # returns borrowed reference to dtype! NP 1.7+ alias for descr. + int PyArray_FLAGS(ndarray) nogil + void PyArray_CLEARFLAGS(ndarray, int flags) nogil # Added in NumPy 1.7 + void PyArray_ENABLEFLAGS(ndarray, int flags) nogil # Added in NumPy 1.7 + npy_intp PyArray_ITEMSIZE(ndarray) nogil + int PyArray_TYPE(ndarray arr) nogil + + object PyArray_GETITEM(ndarray arr, void *itemptr) + int PyArray_SETITEM(ndarray arr, void *itemptr, object obj) except -1 + + bint PyTypeNum_ISBOOL(int) nogil + bint PyTypeNum_ISUNSIGNED(int) nogil + bint PyTypeNum_ISSIGNED(int) nogil + bint PyTypeNum_ISINTEGER(int) nogil + bint PyTypeNum_ISFLOAT(int) nogil + bint PyTypeNum_ISNUMBER(int) nogil + bint PyTypeNum_ISSTRING(int) nogil + bint PyTypeNum_ISCOMPLEX(int) nogil + bint PyTypeNum_ISFLEXIBLE(int) nogil + bint PyTypeNum_ISUSERDEF(int) nogil + bint PyTypeNum_ISEXTENDED(int) nogil + bint PyTypeNum_ISOBJECT(int) nogil + + npy_intp PyDataType_ELSIZE(dtype) nogil + npy_intp PyDataType_ALIGNMENT(dtype) nogil + PyObject* PyDataType_METADATA(dtype) nogil + PyArray_ArrayDescr* PyDataType_SUBARRAY(dtype) nogil + PyObject* PyDataType_NAMES(dtype) nogil + PyObject* PyDataType_FIELDS(dtype) nogil + + bint PyDataType_ISBOOL(dtype) nogil + bint PyDataType_ISUNSIGNED(dtype) nogil + bint PyDataType_ISSIGNED(dtype) nogil + bint PyDataType_ISINTEGER(dtype) nogil + bint PyDataType_ISFLOAT(dtype) nogil + bint PyDataType_ISNUMBER(dtype) nogil + bint PyDataType_ISSTRING(dtype) nogil + bint PyDataType_ISCOMPLEX(dtype) nogil + bint PyDataType_ISFLEXIBLE(dtype) nogil + bint PyDataType_ISUSERDEF(dtype) nogil + bint PyDataType_ISEXTENDED(dtype) nogil + bint PyDataType_ISOBJECT(dtype) nogil + bint PyDataType_HASFIELDS(dtype) nogil + bint PyDataType_HASSUBARRAY(dtype) nogil + npy_uint64 PyDataType_FLAGS(dtype) nogil + + bint PyArray_ISBOOL(ndarray) nogil + bint PyArray_ISUNSIGNED(ndarray) nogil + bint PyArray_ISSIGNED(ndarray) nogil + bint PyArray_ISINTEGER(ndarray) nogil + bint PyArray_ISFLOAT(ndarray) nogil + bint PyArray_ISNUMBER(ndarray) nogil + bint PyArray_ISSTRING(ndarray) nogil + bint PyArray_ISCOMPLEX(ndarray) nogil + bint PyArray_ISFLEXIBLE(ndarray) nogil + bint PyArray_ISUSERDEF(ndarray) nogil + bint PyArray_ISEXTENDED(ndarray) nogil + bint PyArray_ISOBJECT(ndarray) nogil + bint PyArray_HASFIELDS(ndarray) nogil + + bint PyArray_ISVARIABLE(ndarray) nogil + + bint PyArray_SAFEALIGNEDCOPY(ndarray) nogil + bint PyArray_ISNBO(char) nogil # works on ndarray.byteorder + bint PyArray_IsNativeByteOrder(char) nogil # works on ndarray.byteorder + bint PyArray_ISNOTSWAPPED(ndarray) nogil + bint PyArray_ISBYTESWAPPED(ndarray) nogil + + bint PyArray_FLAGSWAP(ndarray, int) nogil + + bint PyArray_ISCARRAY(ndarray) nogil + bint PyArray_ISCARRAY_RO(ndarray) nogil + bint PyArray_ISFARRAY(ndarray) nogil + bint PyArray_ISFARRAY_RO(ndarray) nogil + bint PyArray_ISBEHAVED(ndarray) nogil + bint PyArray_ISBEHAVED_RO(ndarray) nogil + + + bint PyDataType_ISNOTSWAPPED(dtype) nogil + bint PyDataType_ISBYTESWAPPED(dtype) nogil + + bint PyArray_DescrCheck(object) + + bint PyArray_Check(object) + bint PyArray_CheckExact(object) + + # Cannot be supported due to out arg: + # bint PyArray_HasArrayInterfaceType(object, dtype, object, object&) + # bint PyArray_HasArrayInterface(op, out) + + + bint PyArray_IsZeroDim(object) + # Cannot be supported due to ## ## in macro: + # bint PyArray_IsScalar(object, verbatim work) + bint PyArray_CheckScalar(object) + bint PyArray_IsPythonNumber(object) + bint PyArray_IsPythonScalar(object) + bint PyArray_IsAnyScalar(object) + bint PyArray_CheckAnyScalar(object) + + ndarray PyArray_GETCONTIGUOUS(ndarray) + bint PyArray_SAMESHAPE(ndarray, ndarray) nogil + npy_intp PyArray_SIZE(ndarray) nogil + npy_intp PyArray_NBYTES(ndarray) nogil + + object PyArray_FROM_O(object) + object PyArray_FROM_OF(object m, int flags) + object PyArray_FROM_OT(object m, int type) + object PyArray_FROM_OTF(object m, int type, int flags) + object PyArray_FROMANY(object m, int type, int min, int max, int flags) + object PyArray_ZEROS(int nd, npy_intp* dims, int type, int fortran) + object PyArray_EMPTY(int nd, npy_intp* dims, int type, int fortran) + void PyArray_FILLWBYTE(ndarray, int val) + object PyArray_ContiguousFromAny(op, int, int min_depth, int max_depth) + unsigned char PyArray_EquivArrTypes(ndarray a1, ndarray a2) + bint PyArray_EquivByteorders(int b1, int b2) nogil + object PyArray_SimpleNew(int nd, npy_intp* dims, int typenum) + object PyArray_SimpleNewFromData(int nd, npy_intp* dims, int typenum, void* data) + #object PyArray_SimpleNewFromDescr(int nd, npy_intp* dims, dtype descr) + object PyArray_ToScalar(void* data, ndarray arr) + + void* PyArray_GETPTR1(ndarray m, npy_intp i) nogil + void* PyArray_GETPTR2(ndarray m, npy_intp i, npy_intp j) nogil + void* PyArray_GETPTR3(ndarray m, npy_intp i, npy_intp j, npy_intp k) nogil + void* PyArray_GETPTR4(ndarray m, npy_intp i, npy_intp j, npy_intp k, npy_intp l) nogil + + # Cannot be supported due to out arg + # void PyArray_DESCR_REPLACE(descr) + + + object PyArray_Copy(ndarray) + object PyArray_FromObject(object op, int type, int min_depth, int max_depth) + object PyArray_ContiguousFromObject(object op, int type, int min_depth, int max_depth) + object PyArray_CopyFromObject(object op, int type, int min_depth, int max_depth) + + object PyArray_Cast(ndarray mp, int type_num) + object PyArray_Take(ndarray ap, object items, int axis) + object PyArray_Put(ndarray ap, object items, object values) + + void PyArray_ITER_RESET(flatiter it) nogil + void PyArray_ITER_NEXT(flatiter it) nogil + void PyArray_ITER_GOTO(flatiter it, npy_intp* destination) nogil + void PyArray_ITER_GOTO1D(flatiter it, npy_intp ind) nogil + void* PyArray_ITER_DATA(flatiter it) nogil + bint PyArray_ITER_NOTDONE(flatiter it) nogil + + void PyArray_MultiIter_RESET(broadcast multi) nogil + void PyArray_MultiIter_NEXT(broadcast multi) nogil + void PyArray_MultiIter_GOTO(broadcast multi, npy_intp dest) nogil + void PyArray_MultiIter_GOTO1D(broadcast multi, npy_intp ind) nogil + void* PyArray_MultiIter_DATA(broadcast multi, npy_intp i) nogil + void PyArray_MultiIter_NEXTi(broadcast multi, npy_intp i) nogil + bint PyArray_MultiIter_NOTDONE(broadcast multi) nogil + npy_intp PyArray_MultiIter_SIZE(broadcast multi) nogil + int PyArray_MultiIter_NDIM(broadcast multi) nogil + npy_intp PyArray_MultiIter_INDEX(broadcast multi) nogil + int PyArray_MultiIter_NUMITER(broadcast multi) nogil + npy_intp* PyArray_MultiIter_DIMS(broadcast multi) nogil + void** PyArray_MultiIter_ITERS(broadcast multi) nogil + + # Functions from __multiarray_api.h + + # Functions taking dtype and returning object/ndarray are disabled + # for now as they steal dtype references. I'm conservative and disable + # more than is probably needed until it can be checked further. + int PyArray_INCREF (ndarray) except * # uses PyArray_Item_INCREF... + int PyArray_XDECREF (ndarray) except * # uses PyArray_Item_DECREF... + dtype PyArray_DescrFromType (int) + object PyArray_TypeObjectFromType (int) + char * PyArray_Zero (ndarray) + char * PyArray_One (ndarray) + #object PyArray_CastToType (ndarray, dtype, int) + int PyArray_CanCastSafely (int, int) # writes errors + npy_bool PyArray_CanCastTo (dtype, dtype) # writes errors + int PyArray_ObjectType (object, int) except 0 + dtype PyArray_DescrFromObject (object, dtype) + #ndarray* PyArray_ConvertToCommonType (object, int *) + dtype PyArray_DescrFromScalar (object) + dtype PyArray_DescrFromTypeObject (object) + npy_intp PyArray_Size (object) + #object PyArray_Scalar (void *, dtype, object) + #object PyArray_FromScalar (object, dtype) + void PyArray_ScalarAsCtype (object, void *) + #int PyArray_CastScalarToCtype (object, void *, dtype) + #int PyArray_CastScalarDirect (object, dtype, void *, int) + #PyArray_VectorUnaryFunc * PyArray_GetCastFunc (dtype, int) + #object PyArray_FromAny (object, dtype, int, int, int, object) + object PyArray_EnsureArray (object) + object PyArray_EnsureAnyArray (object) + #object PyArray_FromFile (stdio.FILE *, dtype, npy_intp, char *) + #object PyArray_FromString (char *, npy_intp, dtype, npy_intp, char *) + #object PyArray_FromBuffer (object, dtype, npy_intp, npy_intp) + #object PyArray_FromIter (object, dtype, npy_intp) + object PyArray_Return (ndarray) + #object PyArray_GetField (ndarray, dtype, int) + #int PyArray_SetField (ndarray, dtype, int, object) except -1 + object PyArray_Byteswap (ndarray, npy_bool) + object PyArray_Resize (ndarray, PyArray_Dims *, int, NPY_ORDER) + int PyArray_CopyInto (ndarray, ndarray) except -1 + int PyArray_CopyAnyInto (ndarray, ndarray) except -1 + int PyArray_CopyObject (ndarray, object) except -1 + object PyArray_NewCopy (ndarray, NPY_ORDER) + object PyArray_ToList (ndarray) + object PyArray_ToString (ndarray, NPY_ORDER) + int PyArray_ToFile (ndarray, stdio.FILE *, char *, char *) except -1 + int PyArray_Dump (object, object, int) except -1 + object PyArray_Dumps (object, int) + int PyArray_ValidType (int) # Cannot error + void PyArray_UpdateFlags (ndarray, int) + object PyArray_New (type, int, npy_intp *, int, npy_intp *, void *, int, int, object) + #object PyArray_NewFromDescr (type, dtype, int, npy_intp *, npy_intp *, void *, int, object) + #dtype PyArray_DescrNew (dtype) + dtype PyArray_DescrNewFromType (int) + double PyArray_GetPriority (object, double) # clears errors as of 1.25 + object PyArray_IterNew (object) + object PyArray_MultiIterNew (int, ...) + + int PyArray_PyIntAsInt (object) except? -1 + npy_intp PyArray_PyIntAsIntp (object) + int PyArray_Broadcast (broadcast) except -1 + int PyArray_FillWithScalar (ndarray, object) except -1 + npy_bool PyArray_CheckStrides (int, int, npy_intp, npy_intp, npy_intp *, npy_intp *) + dtype PyArray_DescrNewByteorder (dtype, char) + object PyArray_IterAllButAxis (object, int *) + #object PyArray_CheckFromAny (object, dtype, int, int, int, object) + #object PyArray_FromArray (ndarray, dtype, int) + object PyArray_FromInterface (object) + object PyArray_FromStructInterface (object) + #object PyArray_FromArrayAttr (object, dtype, object) + #NPY_SCALARKIND PyArray_ScalarKind (int, ndarray*) + int PyArray_CanCoerceScalar (int, int, NPY_SCALARKIND) + npy_bool PyArray_CanCastScalar (type, type) + int PyArray_RemoveSmallest (broadcast) except -1 + int PyArray_ElementStrides (object) + void PyArray_Item_INCREF (char *, dtype) except * + void PyArray_Item_XDECREF (char *, dtype) except * + object PyArray_Transpose (ndarray, PyArray_Dims *) + object PyArray_TakeFrom (ndarray, object, int, ndarray, NPY_CLIPMODE) + object PyArray_PutTo (ndarray, object, object, NPY_CLIPMODE) + object PyArray_PutMask (ndarray, object, object) + object PyArray_Repeat (ndarray, object, int) + object PyArray_Choose (ndarray, object, ndarray, NPY_CLIPMODE) + int PyArray_Sort (ndarray, int, NPY_SORTKIND) except -1 + object PyArray_ArgSort (ndarray, int, NPY_SORTKIND) + object PyArray_SearchSorted (ndarray, object, NPY_SEARCHSIDE, PyObject *) + object PyArray_ArgMax (ndarray, int, ndarray) + object PyArray_ArgMin (ndarray, int, ndarray) + object PyArray_Reshape (ndarray, object) + object PyArray_Newshape (ndarray, PyArray_Dims *, NPY_ORDER) + object PyArray_Squeeze (ndarray) + #object PyArray_View (ndarray, dtype, type) + object PyArray_SwapAxes (ndarray, int, int) + object PyArray_Max (ndarray, int, ndarray) + object PyArray_Min (ndarray, int, ndarray) + object PyArray_Ptp (ndarray, int, ndarray) + object PyArray_Mean (ndarray, int, int, ndarray) + object PyArray_Trace (ndarray, int, int, int, int, ndarray) + object PyArray_Diagonal (ndarray, int, int, int) + object PyArray_Clip (ndarray, object, object, ndarray) + object PyArray_Conjugate (ndarray, ndarray) + object PyArray_Nonzero (ndarray) + object PyArray_Std (ndarray, int, int, ndarray, int) + object PyArray_Sum (ndarray, int, int, ndarray) + object PyArray_CumSum (ndarray, int, int, ndarray) + object PyArray_Prod (ndarray, int, int, ndarray) + object PyArray_CumProd (ndarray, int, int, ndarray) + object PyArray_All (ndarray, int, ndarray) + object PyArray_Any (ndarray, int, ndarray) + object PyArray_Compress (ndarray, object, int, ndarray) + object PyArray_Flatten (ndarray, NPY_ORDER) + object PyArray_Ravel (ndarray, NPY_ORDER) + npy_intp PyArray_MultiplyList (npy_intp *, int) + int PyArray_MultiplyIntList (int *, int) + void * PyArray_GetPtr (ndarray, npy_intp*) + int PyArray_CompareLists (npy_intp *, npy_intp *, int) + #int PyArray_AsCArray (object*, void *, npy_intp *, int, dtype) + int PyArray_Free (object, void *) + #int PyArray_Converter (object, object*) + int PyArray_IntpFromSequence (object, npy_intp *, int) except -1 + object PyArray_Concatenate (object, int) + object PyArray_InnerProduct (object, object) + object PyArray_MatrixProduct (object, object) + object PyArray_Correlate (object, object, int) + #int PyArray_DescrConverter (object, dtype*) except 0 + #int PyArray_DescrConverter2 (object, dtype*) except 0 + int PyArray_IntpConverter (object, PyArray_Dims *) except 0 + #int PyArray_BufferConverter (object, chunk) except 0 + int PyArray_AxisConverter (object, int *) except 0 + int PyArray_BoolConverter (object, npy_bool *) except 0 + int PyArray_ByteorderConverter (object, char *) except 0 + int PyArray_OrderConverter (object, NPY_ORDER *) except 0 + unsigned char PyArray_EquivTypes (dtype, dtype) # clears errors + #object PyArray_Zeros (int, npy_intp *, dtype, int) + #object PyArray_Empty (int, npy_intp *, dtype, int) + object PyArray_Where (object, object, object) + object PyArray_Arange (double, double, double, int) + #object PyArray_ArangeObj (object, object, object, dtype) + int PyArray_SortkindConverter (object, NPY_SORTKIND *) except 0 + object PyArray_LexSort (object, int) + object PyArray_Round (ndarray, int, ndarray) + unsigned char PyArray_EquivTypenums (int, int) + int PyArray_RegisterDataType (dtype) except -1 + int PyArray_RegisterCastFunc (dtype, int, PyArray_VectorUnaryFunc *) except -1 + int PyArray_RegisterCanCast (dtype, int, NPY_SCALARKIND) except -1 + #void PyArray_InitArrFuncs (PyArray_ArrFuncs *) + object PyArray_IntTupleFromIntp (int, npy_intp *) + int PyArray_ClipmodeConverter (object, NPY_CLIPMODE *) except 0 + #int PyArray_OutputConverter (object, ndarray*) except 0 + object PyArray_BroadcastToShape (object, npy_intp *, int) + #int PyArray_DescrAlignConverter (object, dtype*) except 0 + #int PyArray_DescrAlignConverter2 (object, dtype*) except 0 + int PyArray_SearchsideConverter (object, void *) except 0 + object PyArray_CheckAxis (ndarray, int *, int) + npy_intp PyArray_OverflowMultiplyList (npy_intp *, int) + int PyArray_SetBaseObject(ndarray, base) except -1 # NOTE: steals a reference to base! Use "set_array_base()" instead. + + # The memory handler functions require the NumPy 1.22 API + # and may require defining NPY_TARGET_VERSION + ctypedef struct PyDataMemAllocator: + void *ctx + void* (*malloc) (void *ctx, size_t size) + void* (*calloc) (void *ctx, size_t nelem, size_t elsize) + void* (*realloc) (void *ctx, void *ptr, size_t new_size) + void (*free) (void *ctx, void *ptr, size_t size) + + ctypedef struct PyDataMem_Handler: + char* name + npy_uint8 version + PyDataMemAllocator allocator + + object PyDataMem_SetHandler(object handler) + object PyDataMem_GetHandler() + + # additional datetime related functions are defined below + + +# Typedefs that matches the runtime dtype objects in +# the numpy module. + +# The ones that are commented out needs an IFDEF function +# in Cython to enable them only on the right systems. + +ctypedef npy_int8 int8_t +ctypedef npy_int16 int16_t +ctypedef npy_int32 int32_t +ctypedef npy_int64 int64_t + +ctypedef npy_uint8 uint8_t +ctypedef npy_uint16 uint16_t +ctypedef npy_uint32 uint32_t +ctypedef npy_uint64 uint64_t + +ctypedef npy_float32 float32_t +ctypedef npy_float64 float64_t +#ctypedef npy_float80 float80_t +#ctypedef npy_float128 float128_t + +ctypedef float complex complex64_t +ctypedef double complex complex128_t + +ctypedef npy_longlong longlong_t +ctypedef npy_ulonglong ulonglong_t + +ctypedef npy_intp intp_t +ctypedef npy_uintp uintp_t + +ctypedef npy_double float_t +ctypedef npy_double double_t +ctypedef npy_longdouble longdouble_t + +ctypedef float complex cfloat_t +ctypedef double complex cdouble_t +ctypedef double complex complex_t +ctypedef long double complex clongdouble_t + +cdef inline object PyArray_MultiIterNew1(a): + return PyArray_MultiIterNew(1, <void*>a) + +cdef inline object PyArray_MultiIterNew2(a, b): + return PyArray_MultiIterNew(2, <void*>a, <void*>b) + +cdef inline object PyArray_MultiIterNew3(a, b, c): + return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c) + +cdef inline object PyArray_MultiIterNew4(a, b, c, d): + return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d) + +cdef inline object PyArray_MultiIterNew5(a, b, c, d, e): + return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e) + +cdef inline tuple PyDataType_SHAPE(dtype d): + if PyDataType_HASSUBARRAY(d): + return <tuple>d.subarray.shape + else: + return () + + +cdef extern from "numpy/ndarrayobject.h": + PyTypeObject PyTimedeltaArrType_Type + PyTypeObject PyDatetimeArrType_Type + ctypedef int64_t npy_timedelta + ctypedef int64_t npy_datetime + +cdef extern from "numpy/ndarraytypes.h": + ctypedef struct PyArray_DatetimeMetaData: + NPY_DATETIMEUNIT base + int64_t num + + ctypedef struct npy_datetimestruct: + int64_t year + int32_t month, day, hour, min, sec, us, ps, as + + # Iterator API added in v1.6 + # + # These don't match the definition in the C API because Cython can't wrap + # function pointers that return functions. + # https://github.com/cython/cython/issues/6720 + ctypedef int (*NpyIter_IterNextFunc "NpyIter_IterNextFunc *")(NpyIter* it) noexcept nogil + ctypedef void (*NpyIter_GetMultiIndexFunc "NpyIter_GetMultiIndexFunc *")(NpyIter* it, npy_intp* outcoords) noexcept nogil + + +cdef extern from "numpy/arrayscalars.h": + + # abstract types + ctypedef class numpy.generic [object PyObject]: + pass + ctypedef class numpy.number [object PyObject]: + pass + ctypedef class numpy.integer [object PyObject]: + pass + ctypedef class numpy.signedinteger [object PyObject]: + pass + ctypedef class numpy.unsignedinteger [object PyObject]: + pass + ctypedef class numpy.inexact [object PyObject]: + pass + ctypedef class numpy.floating [object PyObject]: + pass + ctypedef class numpy.complexfloating [object PyObject]: + pass + ctypedef class numpy.flexible [object PyObject]: + pass + ctypedef class numpy.character [object PyObject]: + pass + + ctypedef struct PyDatetimeScalarObject: + # PyObject_HEAD + npy_datetime obval + PyArray_DatetimeMetaData obmeta + + ctypedef struct PyTimedeltaScalarObject: + # PyObject_HEAD + npy_timedelta obval + PyArray_DatetimeMetaData obmeta + + ctypedef enum NPY_DATETIMEUNIT: + NPY_FR_Y + NPY_FR_M + NPY_FR_W + NPY_FR_D + NPY_FR_B + NPY_FR_h + NPY_FR_m + NPY_FR_s + NPY_FR_ms + NPY_FR_us + NPY_FR_ns + NPY_FR_ps + NPY_FR_fs + NPY_FR_as + NPY_FR_GENERIC + + +cdef extern from "numpy/arrayobject.h": + # These are part of the C-API defined in `__multiarray_api.h` + + # NumPy internal definitions in datetime_strings.c: + int get_datetime_iso_8601_strlen "NpyDatetime_GetDatetimeISO8601StrLen" ( + int local, NPY_DATETIMEUNIT base) + int make_iso_8601_datetime "NpyDatetime_MakeISO8601Datetime" ( + npy_datetimestruct *dts, char *outstr, npy_intp outlen, + int local, int utc, NPY_DATETIMEUNIT base, int tzoffset, + NPY_CASTING casting) except -1 + + # NumPy internal definition in datetime.c: + # May return 1 to indicate that object does not appear to be a datetime + # (returns 0 on success). + int convert_pydatetime_to_datetimestruct "NpyDatetime_ConvertPyDateTimeToDatetimeStruct" ( + PyObject *obj, npy_datetimestruct *out, + NPY_DATETIMEUNIT *out_bestunit, int apply_tzinfo) except -1 + int convert_datetime64_to_datetimestruct "NpyDatetime_ConvertDatetime64ToDatetimeStruct" ( + PyArray_DatetimeMetaData *meta, npy_datetime dt, + npy_datetimestruct *out) except -1 + int convert_datetimestruct_to_datetime64 "NpyDatetime_ConvertDatetimeStructToDatetime64"( + PyArray_DatetimeMetaData *meta, const npy_datetimestruct *dts, + npy_datetime *out) except -1 + + +# +# ufunc API +# + +cdef extern from "numpy/ufuncobject.h": + + ctypedef void (*PyUFuncGenericFunction) (char **, npy_intp *, npy_intp *, void *) + + ctypedef class numpy.ufunc [object PyUFuncObject, check_size ignore]: + cdef: + int nin, nout, nargs + int identity + PyUFuncGenericFunction *functions + void **data + int ntypes + int check_return + char *name + char *types + char *doc + void *ptr + PyObject *obj + PyObject *userloops + + cdef enum: + PyUFunc_Zero + PyUFunc_One + PyUFunc_None + # deprecated + UFUNC_FPE_DIVIDEBYZERO + UFUNC_FPE_OVERFLOW + UFUNC_FPE_UNDERFLOW + UFUNC_FPE_INVALID + # use these instead + NPY_FPE_DIVIDEBYZERO + NPY_FPE_OVERFLOW + NPY_FPE_UNDERFLOW + NPY_FPE_INVALID + + + object PyUFunc_FromFuncAndData(PyUFuncGenericFunction *, + void **, char *, int, int, int, int, char *, char *, int) + int PyUFunc_RegisterLoopForType(ufunc, int, + PyUFuncGenericFunction, int *, void *) except -1 + void PyUFunc_f_f_As_d_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_d_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_f_f \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_g_g \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_F_F_As_D_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_F_F \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_D_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_G_G \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_O_O \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_ff_f_As_dd_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_ff_f \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_dd_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_gg_g \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_FF_F_As_DD_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_DD_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_FF_F \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_GG_G \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_OO_O \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_O_O_method \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_OO_O_method \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_On_Om \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_clearfperr() + int PyUFunc_getfperr() + int PyUFunc_ReplaceLoopBySignature \ + (ufunc, PyUFuncGenericFunction, int *, PyUFuncGenericFunction *) + object PyUFunc_FromFuncAndDataAndSignature \ + (PyUFuncGenericFunction *, void **, char *, int, int, int, + int, char *, char *, int, char *) + + int _import_umath() except -1 + +cdef inline void set_array_base(ndarray arr, object base) except *: + Py_INCREF(base) # important to do this before stealing the reference below! + PyArray_SetBaseObject(arr, base) + +cdef inline object get_array_base(ndarray arr): + base = PyArray_BASE(arr) + if base is NULL: + return None + return <object>base + +# Versions of the import_* functions which are more suitable for +# Cython code. +cdef inline int import_array() except -1: + try: + __pyx_import_array() + except Exception: + raise ImportError("numpy._core.multiarray failed to import") + +cdef inline int import_umath() except -1: + try: + _import_umath() + except Exception: + raise ImportError("numpy._core.umath failed to import") + +cdef inline int import_ufunc() except -1: + try: + _import_umath() + except Exception: + raise ImportError("numpy._core.umath failed to import") + + +cdef inline bint is_timedelta64_object(object obj) noexcept: + """ + Cython equivalent of `isinstance(obj, np.timedelta64)` + + Parameters + ---------- + obj : object + + Returns + ------- + bool + """ + return PyObject_TypeCheck(obj, &PyTimedeltaArrType_Type) + + +cdef inline bint is_datetime64_object(object obj) noexcept: + """ + Cython equivalent of `isinstance(obj, np.datetime64)` + + Parameters + ---------- + obj : object + + Returns + ------- + bool + """ + return PyObject_TypeCheck(obj, &PyDatetimeArrType_Type) + + +cdef inline npy_datetime get_datetime64_value(object obj) noexcept nogil: + """ + returns the int64 value underlying scalar numpy datetime64 object + + Note that to interpret this as a datetime, the corresponding unit is + also needed. That can be found using `get_datetime64_unit`. + """ + return (<PyDatetimeScalarObject*>obj).obval + + +cdef inline npy_timedelta get_timedelta64_value(object obj) noexcept nogil: + """ + returns the int64 value underlying scalar numpy timedelta64 object + """ + return (<PyTimedeltaScalarObject*>obj).obval + + +cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) noexcept nogil: + """ + returns the unit part of the dtype for a numpy datetime64 object. + """ + return <NPY_DATETIMEUNIT>(<PyDatetimeScalarObject*>obj).obmeta.base + + +cdef extern from "numpy/arrayobject.h": + + ctypedef struct NpyIter: + pass + + cdef enum: + NPY_FAIL + NPY_SUCCEED + + cdef enum: + # Track an index representing C order + NPY_ITER_C_INDEX + # Track an index representing Fortran order + NPY_ITER_F_INDEX + # Track a multi-index + NPY_ITER_MULTI_INDEX + # User code external to the iterator does the 1-dimensional innermost loop + NPY_ITER_EXTERNAL_LOOP + # Convert all the operands to a common data type + NPY_ITER_COMMON_DTYPE + # Operands may hold references, requiring API access during iteration + NPY_ITER_REFS_OK + # Zero-sized operands should be permitted, iteration checks IterSize for 0 + NPY_ITER_ZEROSIZE_OK + # Permits reductions (size-0 stride with dimension size > 1) + NPY_ITER_REDUCE_OK + # Enables sub-range iteration + NPY_ITER_RANGED + # Enables buffering + NPY_ITER_BUFFERED + # When buffering is enabled, grows the inner loop if possible + NPY_ITER_GROWINNER + # Delay allocation of buffers until first Reset* call + NPY_ITER_DELAY_BUFALLOC + # When NPY_KEEPORDER is specified, disable reversing negative-stride axes + NPY_ITER_DONT_NEGATE_STRIDES + NPY_ITER_COPY_IF_OVERLAP + # The operand will be read from and written to + NPY_ITER_READWRITE + # The operand will only be read from + NPY_ITER_READONLY + # The operand will only be written to + NPY_ITER_WRITEONLY + # The operand's data must be in native byte order + NPY_ITER_NBO + # The operand's data must be aligned + NPY_ITER_ALIGNED + # The operand's data must be contiguous (within the inner loop) + NPY_ITER_CONTIG + # The operand may be copied to satisfy requirements + NPY_ITER_COPY + # The operand may be copied with WRITEBACKIFCOPY to satisfy requirements + NPY_ITER_UPDATEIFCOPY + # Allocate the operand if it is NULL + NPY_ITER_ALLOCATE + # If an operand is allocated, don't use any subtype + NPY_ITER_NO_SUBTYPE + # This is a virtual array slot, operand is NULL but temporary data is there + NPY_ITER_VIRTUAL + # Require that the dimension match the iterator dimensions exactly + NPY_ITER_NO_BROADCAST + # A mask is being used on this array, affects buffer -> array copy + NPY_ITER_WRITEMASKED + # This array is the mask for all WRITEMASKED operands + NPY_ITER_ARRAYMASK + # Assume iterator order data access for COPY_IF_OVERLAP + NPY_ITER_OVERLAP_ASSUME_ELEMENTWISE + + # construction and destruction functions + NpyIter* NpyIter_New(ndarray arr, npy_uint32 flags, NPY_ORDER order, + NPY_CASTING casting, dtype datatype) except NULL + NpyIter* NpyIter_MultiNew(npy_intp nop, PyArrayObject** op, npy_uint32 flags, + NPY_ORDER order, NPY_CASTING casting, npy_uint32* + op_flags, PyArray_Descr** op_dtypes) except NULL + NpyIter* NpyIter_AdvancedNew(npy_intp nop, PyArrayObject** op, + npy_uint32 flags, NPY_ORDER order, + NPY_CASTING casting, npy_uint32* op_flags, + PyArray_Descr** op_dtypes, int oa_ndim, + int** op_axes, const npy_intp* itershape, + npy_intp buffersize) except NULL + NpyIter* NpyIter_Copy(NpyIter* it) except NULL + int NpyIter_RemoveAxis(NpyIter* it, int axis) except NPY_FAIL + int NpyIter_RemoveMultiIndex(NpyIter* it) except NPY_FAIL + int NpyIter_EnableExternalLoop(NpyIter* it) except NPY_FAIL + int NpyIter_Deallocate(NpyIter* it) except NPY_FAIL + int NpyIter_Reset(NpyIter* it, char** errmsg) except NPY_FAIL + int NpyIter_ResetToIterIndexRange(NpyIter* it, npy_intp istart, + npy_intp iend, char** errmsg) except NPY_FAIL + int NpyIter_ResetBasePointers(NpyIter* it, char** baseptrs, char** errmsg) except NPY_FAIL + int NpyIter_GotoMultiIndex(NpyIter* it, const npy_intp* multi_index) except NPY_FAIL + int NpyIter_GotoIndex(NpyIter* it, npy_intp index) except NPY_FAIL + npy_intp NpyIter_GetIterSize(NpyIter* it) nogil + npy_intp NpyIter_GetIterIndex(NpyIter* it) nogil + void NpyIter_GetIterIndexRange(NpyIter* it, npy_intp* istart, + npy_intp* iend) nogil + int NpyIter_GotoIterIndex(NpyIter* it, npy_intp iterindex) except NPY_FAIL + npy_bool NpyIter_HasDelayedBufAlloc(NpyIter* it) nogil + npy_bool NpyIter_HasExternalLoop(NpyIter* it) nogil + npy_bool NpyIter_HasMultiIndex(NpyIter* it) nogil + npy_bool NpyIter_HasIndex(NpyIter* it) nogil + npy_bool NpyIter_RequiresBuffering(NpyIter* it) nogil + npy_bool NpyIter_IsBuffered(NpyIter* it) nogil + npy_bool NpyIter_IsGrowInner(NpyIter* it) nogil + npy_intp NpyIter_GetBufferSize(NpyIter* it) nogil + int NpyIter_GetNDim(NpyIter* it) nogil + int NpyIter_GetNOp(NpyIter* it) nogil + npy_intp* NpyIter_GetAxisStrideArray(NpyIter* it, int axis) except NULL + int NpyIter_GetShape(NpyIter* it, npy_intp* outshape) nogil + PyArray_Descr** NpyIter_GetDescrArray(NpyIter* it) + PyArrayObject** NpyIter_GetOperandArray(NpyIter* it) + ndarray NpyIter_GetIterView(NpyIter* it, npy_intp i) + void NpyIter_GetReadFlags(NpyIter* it, char* outreadflags) + void NpyIter_GetWriteFlags(NpyIter* it, char* outwriteflags) + int NpyIter_CreateCompatibleStrides(NpyIter* it, npy_intp itemsize, + npy_intp* outstrides) except NPY_FAIL + npy_bool NpyIter_IsFirstVisit(NpyIter* it, int iop) nogil + # functions for iterating an NpyIter object + # + # These don't match the definition in the C API because Cython can't wrap + # function pointers that return functions. + NpyIter_IterNextFunc NpyIter_GetIterNext(NpyIter* it, char** errmsg) except NULL + NpyIter_GetMultiIndexFunc NpyIter_GetGetMultiIndex(NpyIter* it, + char** errmsg) except NULL + char** NpyIter_GetDataPtrArray(NpyIter* it) nogil + char** NpyIter_GetInitialDataPtrArray(NpyIter* it) nogil + npy_intp* NpyIter_GetIndexPtr(NpyIter* it) + npy_intp* NpyIter_GetInnerStrideArray(NpyIter* it) nogil + npy_intp* NpyIter_GetInnerLoopSizePtr(NpyIter* it) nogil + void NpyIter_GetInnerFixedStrideArray(NpyIter* it, npy_intp* outstrides) nogil + npy_bool NpyIter_IterationNeedsAPI(NpyIter* it) nogil + void NpyIter_DebugPrint(NpyIter* it) + +# NpyString API +cdef extern from "numpy/ndarraytypes.h": + ctypedef struct npy_string_allocator: + pass + + ctypedef struct npy_packed_static_string: + pass + + ctypedef struct npy_static_string: + size_t size + const char *buf + + ctypedef struct PyArray_StringDTypeObject: + PyArray_Descr base + PyObject *na_object + char coerce + char has_nan_na + char has_string_na + char array_owned + npy_static_string default_string + npy_static_string na_name + npy_string_allocator *allocator + +cdef extern from "numpy/arrayobject.h": + npy_string_allocator *NpyString_acquire_allocator(const PyArray_StringDTypeObject *descr) + void NpyString_acquire_allocators(size_t n_descriptors, PyArray_Descr *const descrs[], npy_string_allocator *allocators[]) + void NpyString_release_allocator(npy_string_allocator *allocator) + void NpyString_release_allocators(size_t length, npy_string_allocator *allocators[]) + int NpyString_load(npy_string_allocator *allocator, const npy_packed_static_string *packed_string, npy_static_string *unpacked_string) + int NpyString_pack_null(npy_string_allocator *allocator, npy_packed_static_string *packed_string) + int NpyString_pack(npy_string_allocator *allocator, npy_packed_static_string *packed_string, const char *buf, size_t size) |