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#define NPY_NO_DEPRECATED_API NPY_API_VERSION
#define _MULTIARRAYMODULE
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include "numpy/arrayobject.h"
#include "numpy/npy_math.h"
#include "npy_config.h"
#include "npy_pycompat.h"
#include "ctors.h"
/*
* This file originally contained functions only needed on narrow builds of
* Python for converting back and forth between the NumPy Unicode data-type
* (always 4-bytes) and the Python Unicode scalar (2-bytes on a narrow build).
*
* This "narrow" interface is now deprecated in python and unused in NumPy.
*/
/*
* Returns a PyUnicodeObject initialized from a buffer containing
* UCS4 unicode.
*
* Parameters
* ----------
* src: char *
* Pointer to buffer containing UCS4 unicode.
* size: Py_ssize_t
* Size of buffer in bytes.
* swap: int
* If true, the data will be swapped.
* align: int
* If true, the data will be aligned.
*
* Returns
* -------
* new_reference: PyUnicodeObject
*/
NPY_NO_EXPORT PyUnicodeObject *
PyUnicode_FromUCS4(char const *src_char, Py_ssize_t size, int swap, int align)
{
Py_ssize_t ucs4len = size / sizeof(npy_ucs4);
npy_ucs4 const *src = (npy_ucs4 const *)src_char;
npy_ucs4 *buf = NULL;
/* swap and align if needed */
if (swap || align) {
buf = (npy_ucs4 *)malloc(size);
if (buf == NULL) {
PyErr_NoMemory();
return NULL;
}
memcpy(buf, src, size);
if (swap) {
byte_swap_vector(buf, ucs4len, sizeof(npy_ucs4));
}
src = buf;
}
/* trim trailing zeros */
while (ucs4len > 0 && src[ucs4len - 1] == 0) {
ucs4len--;
}
PyUnicodeObject *ret = (PyUnicodeObject *)PyUnicode_FromKindAndData(
PyUnicode_4BYTE_KIND, src, ucs4len);
free(buf);
return ret;
}
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