parray.py 文件源码

def complextofloat(dtype):
    """ convert dtype from complex to corresponding real dtype """
    dtype = dtype.type if isinstance(dtype, np.dtype) else dtype
    if not issubclass(dtype, np.complexfloating):
        outdtype = dtype
    elif dtype == np.complex64:
        outdtype = np.float32
    elif dtype == np.complex128:
        outdtype = np.float64
    else:
        raise TypeError("input dtype " + str(dtype) +
                        " cannot be translated to floating")
    return np.dtype(outdtype)