Function dragon4_scientific

numpy/core/src/multiarray/multiarraymodule.c:3821–3855

* Prints floating-point scalars using the Dragon4 algorithm, scientific mode. * See docstring of `np.format_float_scientific` for description of arguments. * The differences is that a value of -1 is valid for pad_left, exp_digits, * precision, which is equivalent to `None`. */

 * precision, which is equivalent to `None`.
 */
static PyObject *
dragon4_scientific(PyObject *NPY_UNUSED(dummy),
        PyObject *const *args, Py_ssize_t len_args, PyObject *kwnames)
{
    PyObject *obj;
    int precision=-1, pad_left=-1, exp_digits=-1, min_digits=-1;
    DigitMode digit_mode;
    TrimMode trim = TrimMode_None;
    int sign=0, unique=1;
    NPY_PREPARE_ARGPARSER;

    if (npy_parse_arguments("dragon4_scientific", args, len_args, kwnames,
            "x", NULL , &obj,
            "|precision", &PyArray_PythonPyIntFromInt, &precision,
            "|unique", &PyArray_PythonPyIntFromInt, &unique,
            "|sign", &PyArray_PythonPyIntFromInt, &sign,
            "|trim", &trimmode_converter, &trim,
            "|pad_left", &PyArray_PythonPyIntFromInt, &pad_left,
            "|exp_digits", &PyArray_PythonPyIntFromInt, &exp_digits,
            "|min_digits", &PyArray_PythonPyIntFromInt, &min_digits,
            NULL, NULL, NULL) < 0) {
        return NULL;
    }

    digit_mode = unique ? DigitMode_Unique : DigitMode_Exact;

    if (unique == 0 && precision < 0) {
        PyErr_SetString(PyExc_TypeError,
            "in non-unique mode `precision` must be supplied");
        return NULL;
    }

    return Dragon4_Scientific(obj, digit_mode, precision, min_digits, sign, trim,
                              pad_left, exp_digits);
}

/*
 * Prints floating-point scalars using the Dragon4 algorithm, positional mode.