src/multiarray/array_assign.c File Reference

#include <Python.h>
#include <numpy/ndarraytypes.h>
#include "npy_config.h"
#include "npy_pycompat.h"
#include "shape.h"
#include "array_assign.h"
#include "common.h"
#include "lowlevel_strided_loops.h"
#include "mem_overlap.h"

Defines
#define	PY_SSIZE_T_CLEAN
#define	NPY_NO_DEPRECATED_API   NPY_API_VERSION
#define	_MULTIARRAYMODULE
Functions
NPY_NO_EXPORT int	broadcast_strides (int ndim, npy_intp *shape, int strides_ndim, npy_intp *strides_shape, npy_intp *strides, char *strides_name, npy_intp *out_strides)
NPY_NO_EXPORT int	raw_array_is_aligned (int ndim, char *data, npy_intp *strides, int alignment)
NPY_NO_EXPORT int	arrays_overlap (PyArrayObject *arr1, PyArrayObject *arr2)

---

Define Documentation

#define _MULTIARRAYMODULE

#define NPY_NO_DEPRECATED_API   NPY_API_VERSION

#define PY_SSIZE_T_CLEAN

---

Function Documentation

NPY_NO_EXPORT int arrays_overlap	(	PyArrayObject *	arr1,
		PyArrayObject *	arr2
	)

Returns 1 if the arrays have overlapping data, 0 otherwise

NPY_NO_EXPORT int broadcast_strides	(	int	ndim,
		npy_intp *	shape,
		int	strides_ndim,
		npy_intp *	strides_shape,
		npy_intp *	strides,
		char *	strides_name,
		npy_intp *	out_strides
	)

See array_assign.h for parameter documentation

Can't broadcast to fewer dimensions

Process from the end to the start, so that 'strides' and 'out_strides' can point to the same memory.

If it doesn't have dimension one, it must match

New dimensions get a zero stride

References build_shape_string(), PyUString_ConcatAndDel, PyUString_FromFormat, and PyUString_FromString.

NPY_NO_EXPORT int raw_array_is_aligned	(	int	ndim,
		char *	data,
		npy_intp *	strides,
		int	alignment
	)

See array_assign.h for parameter documentation

References MEM_OVERLAP_NO, NPY_MAY_SHARE_BOUNDS, and solve_may_share_memory().

Referenced by raw_array_assign_array(), and raw_array_assign_scalar().