ndarray.py 文件源码

def _address_as_buffer(address, nbyte, readonly=False):
    if address is None:
        raise ValueError("Cannot create buffer from NULL pointer")
    # Note: This doesn't work as a buffer when using pypy
    # return (ctypes.c_byte*nbyte).from_address(address)
    # Note: This works as a buffer in regular python and pypy
    # Note: int_asbuffer is undocumented; see here:
    # https://mail.scipy.org/pipermail/numpy-discussion/2008-January/030938.html
    return np.core.multiarray.int_asbuffer(
        address, nbyte, readonly=readonly, check=False)