ShapeUtil.py 文件源码

def toCArray(X, dtype=np.float64):
    """ Convert input into numpy array of C-contiguous order.

    Ensures returned array is aligned and owns its own data,
    not a view of another array.

    Returns
    -------
    X : ND array

    Examples
    -------
    >>> Q = np.zeros(10, dtype=np.int32, order='F')
    >>> toCArray(Q).flags.c_contiguous
    True
    >>> toCArray(Q).dtype.byteorder
    '='
    """
    X = np.asarray_chkfinite(X, dtype=dtype, order='C')
    if X.dtype.byteorder != '=':
        X = X.newbyteorder('=').copy()
    if not X.flags.owndata or X.flags.aligned:
        X = X.copy()
    assert X.flags.owndata
    assert X.flags.aligned
    return X