from cpython.bytes cimport (
    PyBytes_AS_STRING,
    PyBytes_FromString,
    PyBytes_FromStringAndSize,
    PyBytes_GET_SIZE,
    PyBytes_Size,
)
from cpython.float cimport PyFloat_FromDouble
from cpython.long cimport PyLong_FromLong
from cpython.ref cimport Py_DECREF, Py_INCREF, PyTypeObject
from libc cimport limits
from libc.stddef cimport ptrdiff_t
from libc.stdint cimport (
    int8_t,
    int16_t,
    int32_t,
    int64_t,
    uint8_t,
    uint16_t,
    uint32_t,
    uint64_t,
    uintptr_t,
)
from libc.stdio cimport FILE, stdout
from libc.stdlib cimport calloc, free, malloc
from libc.string cimport memcpy
from libcpp.vector cimport vector


cdef extern from "Python.h":
    object PyUnicode_FromStringAndSize(const char *u, Py_ssize_t size)
    object PyUnicode_FromString(const char *u)

# Numpy imports
"""
cdef extern from "numpyFlags.h":
    # Include 'numpyFlags.h' into the generated C code to disable warning.
    # This must be included before numpy is cimported
    pass
"""

import numpy as np

cimport numpy as np


cdef extern from "numpy/arrayobject.h":
    # Steals a reference to dtype, need to incref the dtype
    object PyArray_NewFromDescr(PyTypeObject* subtype,
                                np.dtype descr,
                                int nd,
                                np.npy_intp* dims,
                                np.npy_intp* strides,
                                void* data,
                                int flags,
                                object obj)
    # Steals a reference to dtype, need to incref the dtype
    object PyArray_Scalar(void* ptr, np.dtype descr, object itemsize)
    void PyArray_ENABLEFLAGS(np.ndarray arr, int flags)
    void* PyDataMem_NEW(size_t nbytes)
    void* PyDataMem_RENEW(void* data, size_t nbytes)
    void PyDataMem_FREE(void* data)