示例#1
0
/*NUMPY_API
 * Convert an object to NPY_RAISE / NPY_CLIP / NPY_WRAP
 */
NPY_NO_EXPORT int
PyArray_ClipmodeConverter(PyObject *object, NPY_CLIPMODE *val)
{
    if (object == NULL || object == Py_None) {
        *val = NPY_RAISE;
    }
    else if (PyBytes_Check(object)) {
        char *str;
        str = PyBytes_AS_STRING(object);
        if (str[0] == 'C' || str[0] == 'c') {
            *val = NPY_CLIP;
        }
        else if (str[0] == 'W' || str[0] == 'w') {
            *val = NPY_WRAP;
        }
        else if (str[0] == 'R' || str[0] == 'r') {
            *val = NPY_RAISE;
        }
        else {
            PyErr_SetString(PyExc_TypeError,
                            "clipmode not understood");
            return NPY_FAIL;
        }
    }
    else if (PyUnicode_Check(object)) {
        PyObject *tmp;
        int ret;
        tmp = PyUnicode_AsASCIIString(object);
        if (tmp == NULL) {
            return NPY_FAIL;
        }
        ret = PyArray_ClipmodeConverter(tmp, val);
        Py_DECREF(tmp);
        return ret;
    }
    else {
        int number = PyArray_PyIntAsInt(object);
        if (error_converting(number)) {
            goto fail;
        }
        if (number <= (int) NPY_RAISE
                && number >= (int) NPY_CLIP) {
            *val = (NPY_CLIPMODE) number;
        }
        else {
            goto fail;
        }
    }
    return NPY_SUCCEED;

 fail:
    PyErr_SetString(PyExc_TypeError,
                    "clipmode not understood");
    return NPY_FAIL;
}
示例#2
0
/*NUMPY_API
 * Get axis from an object (possibly None) -- a converter function,
 *
 * See also PyArray_ConvertMultiAxis, which also handles a tuple of axes.
 */
NPY_NO_EXPORT int
PyArray_AxisConverter(PyObject *obj, int *axis)
{
    if (obj == Py_None) {
        *axis = NPY_MAXDIMS;
    }
    else {
        *axis = PyArray_PyIntAsInt_ErrMsg(obj,
                               "an integer is required for the axis");
        if (error_converting(*axis)) {
            return NPY_FAIL;
        }
    }
    return NPY_SUCCEED;
}
示例#3
0
文件: extobj.c 项目: Juanlu001/numpy
/*
 * Extracts some values from the global pyvals tuple.
 * all destinations may be NULL, in which case they are not retrieved
 * ref - should hold the global tuple
 * name - is the name of the ufunc (ufuncobj->name)
 *
 * bufsize - receives the buffer size to use
 * errmask - receives the bitmask for error handling
 * errobj - receives the python object to call with the error,
 *          if an error handling method is 'call'
 */
NPY_NO_EXPORT int
_extract_pyvals(PyObject *ref, const char *name, int *bufsize,
                int *errmask, PyObject **errobj)
{
    PyObject *retval;

    /* default errobj case, skips dictionary lookup */
    if (ref == NULL) {
        if (errmask) {
            *errmask = UFUNC_ERR_DEFAULT;
        }
        if (errobj) {
            *errobj = Py_BuildValue("NO", PyBytes_FromString(name), Py_None);
        }
        if (bufsize) {
            *bufsize = NPY_BUFSIZE;
        }
        return 0;
    }

    if (!PyList_Check(ref) || (PyList_GET_SIZE(ref)!=3)) {
        PyErr_Format(PyExc_TypeError,
                "%s must be a length 3 list.", UFUNC_PYVALS_NAME);
        return -1;
    }

    if (bufsize != NULL) {
        *bufsize = PyInt_AsLong(PyList_GET_ITEM(ref, 0));
        if (error_converting(*bufsize)) {
            return -1;
        }
        if ((*bufsize < NPY_MIN_BUFSIZE) ||
                (*bufsize > NPY_MAX_BUFSIZE) ||
                (*bufsize % 16 != 0)) {
            PyErr_Format(PyExc_ValueError,
                    "buffer size (%d) is not in range "
                    "(%"NPY_INTP_FMT" - %"NPY_INTP_FMT") or not a multiple of 16",
                    *bufsize, (npy_intp) NPY_MIN_BUFSIZE,
                    (npy_intp) NPY_MAX_BUFSIZE);
            return -1;
        }
    }

    if (errmask != NULL) {
        *errmask = PyInt_AsLong(PyList_GET_ITEM(ref, 1));
        if (*errmask < 0) {
            if (PyErr_Occurred()) {
                return -1;
            }
            PyErr_Format(PyExc_ValueError,
                         "invalid error mask (%d)",
                         *errmask);
            return -1;
        }
    }

    if (errobj != NULL) {
        *errobj = NULL;
        retval = PyList_GET_ITEM(ref, 2);
        if (retval != Py_None && !PyCallable_Check(retval)) {
            PyObject *temp;
            temp = PyObject_GetAttrString(retval, "write");
            if (temp == NULL || !PyCallable_Check(temp)) {
                PyErr_SetString(PyExc_TypeError,
                                "python object must be callable or have " \
                                "a callable write method");
                Py_XDECREF(temp);
                return -1;
            }
            Py_DECREF(temp);
        }

        *errobj = Py_BuildValue("NO", PyBytes_FromString(name), retval);
        if (*errobj == NULL) {
            return -1;
        }
    }
    return 0;
}
示例#4
0
/*
 * Fill in str with an appropriate PEP 3118 format string, based on
 * descr. For structured dtypes, calls itself recursively. Each call extends
 * str at offset then updates offset, and uses  descr->byteorder, (and
 * possibly the byte order in obj) to determine the byte-order char.
 *
 * Returns 0 for success, -1 for failure
 */
static int
_buffer_format_string(PyArray_Descr *descr, _tmp_string_t *str,
                      PyObject* obj, Py_ssize_t *offset,
                      char *active_byteorder)
{
    int k;
    char _active_byteorder = '@';
    Py_ssize_t _offset = 0;

    if (active_byteorder == NULL) {
        active_byteorder = &_active_byteorder;
    }
    if (offset == NULL) {
        offset = &_offset;
    }

    if (descr->subarray) {
        PyObject *item, *subarray_tuple;
        Py_ssize_t total_count = 1;
        Py_ssize_t dim_size;
        Py_ssize_t old_offset;
        char buf[128];
        int ret;

        if (PyTuple_Check(descr->subarray->shape)) {
            subarray_tuple = descr->subarray->shape;
            Py_INCREF(subarray_tuple);
        }
        else {
            subarray_tuple = Py_BuildValue("(O)", descr->subarray->shape);
        }

        if (_append_char(str, '(') < 0) {
            ret = -1;
            goto subarray_fail;
        }
        for (k = 0; k < PyTuple_GET_SIZE(subarray_tuple); ++k) {
            if (k > 0) {
                if (_append_char(str, ',') < 0) {
                    ret = -1;
                    goto subarray_fail;
                }
            }
            item = PyTuple_GET_ITEM(subarray_tuple, k);
            dim_size = PyNumber_AsSsize_t(item, NULL);

            PyOS_snprintf(buf, sizeof(buf), "%ld", (long)dim_size);
            if (_append_str(str, buf) < 0) {
                ret = -1;
                goto subarray_fail;
            }
            total_count *= dim_size;
        }
        if (_append_char(str, ')') < 0) {
            ret = -1;
            goto subarray_fail;
        }

        old_offset = *offset;
        ret = _buffer_format_string(descr->subarray->base, str, obj, offset,
                                    active_byteorder);
        *offset = old_offset + (*offset - old_offset) * total_count;

    subarray_fail:
        Py_DECREF(subarray_tuple);
        return ret;
    }
    else if (PyDataType_HASFIELDS(descr)) {
        Py_ssize_t base_offset = *offset;

        if (_append_str(str, "T{") < 0) return -1;
        for (k = 0; k < PyTuple_GET_SIZE(descr->names); ++k) {
            PyObject *name, *item, *offset_obj;
            PyArray_Descr *child;
            Py_ssize_t new_offset;
            int ret;

            name = PyTuple_GET_ITEM(descr->names, k);
            item = PyDict_GetItem(descr->fields, name);

            child = (PyArray_Descr*)PyTuple_GetItem(item, 0);
            offset_obj = PyTuple_GetItem(item, 1);
            new_offset = PyInt_AsLong(offset_obj);
            if (error_converting(new_offset)) {
                return -1;
            }
            new_offset += base_offset;

            /* Insert padding manually */
            if (*offset > new_offset) {
                PyErr_SetString(
                    PyExc_ValueError,
                    "dtypes with overlapping or out-of-order fields are not "
                    "representable as buffers. Consider reordering the fields."
                );
                return -1;
            }
            while (*offset < new_offset) {
                if (_append_char(str, 'x') < 0) return -1;
                ++*offset;
            }

            /* Insert child item */
            ret = _buffer_format_string(child, str, obj, offset,
                                  active_byteorder);
            if (ret < 0) {
                return -1;
            }

            /* Insert field name */
            if (_append_field_name(str, name) < 0) return -1;
        }
        if (_append_char(str, '}') < 0) return -1;
    }
    else {
        int is_standard_size = 1;
        int is_natively_aligned;
        int is_native_only_type = (descr->type_num == NPY_LONGDOUBLE ||
                                   descr->type_num == NPY_CLONGDOUBLE);
        if (sizeof(npy_longlong) != 8) {
            is_native_only_type = is_native_only_type || (
                descr->type_num == NPY_LONGLONG ||
                descr->type_num == NPY_ULONGLONG);
        }

        *offset += descr->elsize;

        if (PyArray_IsScalar(obj, Generic)) {
            /* scalars are always natively aligned */
            is_natively_aligned = 1;
        }
        else {
            is_natively_aligned = _is_natively_aligned_at(descr,
                                              (PyArrayObject*)obj, *offset);
        }

        if (descr->byteorder == '=' && is_natively_aligned) {
            /* Prefer native types, to cater for Cython */
            is_standard_size = 0;
            if (*active_byteorder != '@') {
                if (_append_char(str, '@') < 0) return -1;
                *active_byteorder = '@';
            }
        }
        else if (descr->byteorder == '=' && is_native_only_type) {
            /* Data types that have no standard size */
            is_standard_size = 0;
            if (*active_byteorder != '^') {
                if (_append_char(str, '^') < 0) return -1;
                *active_byteorder = '^';
            }
        }
        else if (descr->byteorder == '<' || descr->byteorder == '>' ||
                 descr->byteorder == '=') {
            is_standard_size = 1;
            if (*active_byteorder != descr->byteorder) {
                if (_append_char(str, descr->byteorder) < 0) return -1;
                *active_byteorder = descr->byteorder;
            }

            if (is_native_only_type) {
                /*
                 * It's not possible to express native-only data types
                 * in non-native npy_byte orders
                 */
                PyErr_Format(PyExc_ValueError,
                             "cannot expose native-only dtype '%c' in "
                             "non-native byte order '%c' via buffer interface",
                             descr->type, descr->byteorder);
                return -1;
            }
        }

        switch (descr->type_num) {
        case NPY_BOOL:         if (_append_char(str, '?') < 0) return -1; break;
        case NPY_BYTE:         if (_append_char(str, 'b') < 0) return -1; break;
        case NPY_UBYTE:        if (_append_char(str, 'B') < 0) return -1; break;
        case NPY_SHORT:        if (_append_char(str, 'h') < 0) return -1; break;
        case NPY_USHORT:       if (_append_char(str, 'H') < 0) return -1; break;
        case NPY_INT:          if (_append_char(str, 'i') < 0) return -1; break;
        case NPY_UINT:         if (_append_char(str, 'I') < 0) return -1; break;
        case NPY_LONG:
            if (is_standard_size && (NPY_SIZEOF_LONG == 8)) {
                if (_append_char(str, 'q') < 0) return -1;
            }
            else {
                if (_append_char(str, 'l') < 0) return -1;
            }
            break;
        case NPY_ULONG:
            if (is_standard_size && (NPY_SIZEOF_LONG == 8)) {
                if (_append_char(str, 'Q') < 0) return -1;
            }
            else {
                if (_append_char(str, 'L') < 0) return -1;
            }
            break;
        case NPY_LONGLONG:     if (_append_char(str, 'q') < 0) return -1; break;
        case NPY_ULONGLONG:    if (_append_char(str, 'Q') < 0) return -1; break;
        case NPY_HALF:         if (_append_char(str, 'e') < 0) return -1; break;
        case NPY_FLOAT:        if (_append_char(str, 'f') < 0) return -1; break;
        case NPY_DOUBLE:       if (_append_char(str, 'd') < 0) return -1; break;
        case NPY_LONGDOUBLE:   if (_append_char(str, 'g') < 0) return -1; break;
        case NPY_CFLOAT:       if (_append_str(str, "Zf") < 0) return -1; break;
        case NPY_CDOUBLE:      if (_append_str(str, "Zd") < 0) return -1; break;
        case NPY_CLONGDOUBLE:  if (_append_str(str, "Zg") < 0) return -1; break;
        /* XXX NPY_DATETIME */
        /* XXX NPY_TIMEDELTA */
        case NPY_OBJECT:       if (_append_char(str, 'O') < 0) return -1; break;
        case NPY_STRING: {
            char buf[128];
            PyOS_snprintf(buf, sizeof(buf), "%ds", descr->elsize);
            if (_append_str(str, buf) < 0) return -1;
            break;
        }
        case NPY_UNICODE: {
            /* NumPy Unicode is always 4-byte */
            char buf[128];
            assert(descr->elsize % 4 == 0);
            PyOS_snprintf(buf, sizeof(buf), "%dw", descr->elsize / 4);
            if (_append_str(str, buf) < 0) return -1;
            break;
        }
        case NPY_VOID: {
            /* Insert padding bytes */
            char buf[128];
            PyOS_snprintf(buf, sizeof(buf), "%dx", descr->elsize);
            if (_append_str(str, buf) < 0) return -1;
            break;
        }
        default:
            PyErr_Format(PyExc_ValueError,
                         "cannot include dtype '%c' in a buffer",
                         descr->type);
            return -1;
        }
    }

    return 0;
}
示例#5
0
/*
 * Determine if object is a scalar and if so, convert the object
 * to a double and place it in the out_exponent argument
 * and return the "scalar kind" as a result.   If the object is
 * not a scalar (or if there are other error conditions)
 * return NPY_NOSCALAR, and out_exponent is undefined.
 */
static NPY_SCALARKIND
is_scalar_with_conversion(PyObject *o2, double* out_exponent)
{
    PyObject *temp;
    const int optimize_fpexps = 1;

    if (PyInt_Check(o2)) {
        *out_exponent = (double)PyInt_AsLong(o2);
        return NPY_INTPOS_SCALAR;
    }
    if (optimize_fpexps && PyFloat_Check(o2)) {
        *out_exponent = PyFloat_AsDouble(o2);
        return NPY_FLOAT_SCALAR;
    }
    if (PyArray_Check(o2)) {
        if ((PyArray_NDIM((PyArrayObject *)o2) == 0) &&
                ((PyArray_ISINTEGER((PyArrayObject *)o2) ||
                 (optimize_fpexps && PyArray_ISFLOAT((PyArrayObject *)o2))))) {
            temp = Py_TYPE(o2)->tp_as_number->nb_float(o2);
            if (temp == NULL) {
                return NPY_NOSCALAR;
            }
            *out_exponent = PyFloat_AsDouble(o2);
            Py_DECREF(temp);
            if (PyArray_ISINTEGER((PyArrayObject *)o2)) {
                return NPY_INTPOS_SCALAR;
            }
            else { /* ISFLOAT */
                return NPY_FLOAT_SCALAR;
            }
        }
    }
    else if (PyArray_IsScalar(o2, Integer) ||
                (optimize_fpexps && PyArray_IsScalar(o2, Floating))) {
        temp = Py_TYPE(o2)->tp_as_number->nb_float(o2);
        if (temp == NULL) {
            return NPY_NOSCALAR;
        }
        *out_exponent = PyFloat_AsDouble(o2);
        Py_DECREF(temp);

        if (PyArray_IsScalar(o2, Integer)) {
                return NPY_INTPOS_SCALAR;
        }
        else { /* IsScalar(o2, Floating) */
            return NPY_FLOAT_SCALAR;
        }
    }
    else if (PyIndex_Check(o2)) {
        PyObject* value = PyNumber_Index(o2);
        Py_ssize_t val;
        if (value==NULL) {
            if (PyErr_Occurred()) {
                PyErr_Clear();
            }
            return NPY_NOSCALAR;
        }
        val = PyInt_AsSsize_t(value);
        if (error_converting(val)) {
            PyErr_Clear();
            return NPY_NOSCALAR;
        }
        *out_exponent = (double) val;
        return NPY_INTPOS_SCALAR;
    }
    return NPY_NOSCALAR;
}
示例#6
0
static npy_intp
PyArray_PyIntAsIntp_ErrMsg(PyObject *o, const char * msg)
{
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
    long long long_value = -1;
#else
    long long_value = -1;
#endif
    PyObject *obj, *err;

    if (!o) {
        PyErr_SetString(PyExc_TypeError, msg);
        return -1;
    }

    /* Be a bit stricter and not allow bools, np.bool_ is handled later */
    if (PyBool_Check(o)) {
        if (DEPRECATE("using a boolean instead of an integer"
                      " will result in an error in the future") < 0) {
            return -1;
        }
    }

    /*
     * Since it is the usual case, first check if o is an integer. This is
     * an exact check, since otherwise __index__ is used.
     */
#if !defined(NPY_PY3K)
    if (PyInt_CheckExact(o)) {
  #if (NPY_SIZEOF_LONG <= NPY_SIZEOF_INTP)
        /* No overflow is possible, so we can just return */
        return PyInt_AS_LONG(o);
  #else
        long_value = PyInt_AS_LONG(o);
        goto overflow_check;
  #endif
    }
    else
#endif
    if (PyLong_CheckExact(o)) {
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
        long_value = PyLong_AsLongLong(o);
#else
        long_value = PyLong_AsLong(o);
#endif
        return (npy_intp)long_value;
    }

    /* Disallow numpy.bool_. Boolean arrays do not currently support index. */
    if (PyArray_IsScalar(o, Bool)) {
        if (DEPRECATE("using a boolean instead of an integer"
                      " will result in an error in the future") < 0) {
            return -1;
        }
    }

    /*
     * The most general case. PyNumber_Index(o) covers everything
     * including arrays. In principle it may be possible to replace
     * the whole function by PyIndex_AsSSize_t after deprecation.
     */
    obj = PyNumber_Index(o);
    if (obj) {
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
        long_value = PyLong_AsLongLong(obj);
#else
        long_value = PyLong_AsLong(obj);
#endif
        Py_DECREF(obj);
        goto finish;
    }
    else {
        /*
         * Set the TypeError like PyNumber_Index(o) would after trying
         * the general case.
         */
        PyErr_Clear();
    }

    /*
     * For backward compatibility check the number C-Api number protcol
     * This should be removed up the finish label after deprecation.
     */
    if (Py_TYPE(o)->tp_as_number != NULL &&
        Py_TYPE(o)->tp_as_number->nb_int != NULL) {
        obj = Py_TYPE(o)->tp_as_number->nb_int(o);
        if (obj == NULL) {
            return -1;
        }
 #if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
        long_value = PyLong_AsLongLong(obj);
 #else
        long_value = PyLong_AsLong(obj);
 #endif
        Py_DECREF(obj);
    }
#if !defined(NPY_PY3K)
    else if (Py_TYPE(o)->tp_as_number != NULL &&
             Py_TYPE(o)->tp_as_number->nb_long != NULL) {
        obj = Py_TYPE(o)->tp_as_number->nb_long(o);
        if (obj == NULL) {
            return -1;
        }
  #if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
        long_value = PyLong_AsLongLong(obj);
  #else
        long_value = PyLong_AsLong(obj);
  #endif
        Py_DECREF(obj);
    }
#endif
    else {
        PyErr_SetString(PyExc_TypeError, msg);
        return -1;
    }
    /* Give a deprecation warning, unless there was already an error */
    if (!error_converting(long_value)) {
        if (DEPRECATE("using a non-integer number instead of an integer"
                      " will result in an error in the future") < 0) {
            return -1;
        }
    }

 finish:
    if (error_converting(long_value)) {
        err = PyErr_Occurred();
        /* Only replace TypeError's here, which are the normal errors. */
        if (PyErr_GivenExceptionMatches(err, PyExc_TypeError)) {
            PyErr_SetString(PyExc_TypeError, msg);
        }
        return -1;
    }

 overflow_check:
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
  #if (NPY_SIZEOF_LONGLONG > NPY_SIZEOF_INTP)
    if ((long_value < NPY_MIN_INTP) || (long_value > NPY_MAX_INTP)) {
        PyErr_SetString(PyExc_OverflowError,
                "Python int too large to convert to C numpy.intp");
        return -1;
    }
  #endif
#else
  #if (NPY_SIZEOF_LONG > NPY_SIZEOF_INTP)
    if ((long_value < NPY_MIN_INTP) || (long_value > NPY_MAX_INTP)) {
        PyErr_SetString(PyExc_OverflowError,
                "Python int too large to convert to C numpy.intp");
        return -1;
    }
  #endif
#endif
    return long_value;
}
示例#7
0
/*
 * Converts an axis parameter into an ndim-length C-array of
 * boolean flags, True for each axis specified.
 *
 * If obj is None or NULL, everything is set to True. If obj is a tuple,
 * each axis within the tuple is set to True. If obj is an integer,
 * just that axis is set to True.
 */
NPY_NO_EXPORT int
PyArray_ConvertMultiAxis(PyObject *axis_in, int ndim, npy_bool *out_axis_flags)
{
    /* None means all of the axes */
    if (axis_in == Py_None || axis_in == NULL) {
        memset(out_axis_flags, 1, ndim);
        return NPY_SUCCEED;
    }
    /* A tuple of which axes */
    else if (PyTuple_Check(axis_in)) {
        int i, naxes;

        memset(out_axis_flags, 0, ndim);

        naxes = PyTuple_Size(axis_in);
        if (naxes < 0) {
            return NPY_FAIL;
        }
        for (i = 0; i < naxes; ++i) {
            PyObject *tmp = PyTuple_GET_ITEM(axis_in, i);
            int axis = PyArray_PyIntAsInt_ErrMsg(tmp,
                          "integers are required for the axis tuple elements");
            int axis_orig = axis;
            if (error_converting(axis)) {
                return NPY_FAIL;
            }
            if (axis < 0) {
                axis += ndim;
            }
            if (axis < 0 || axis >= ndim) {
                PyErr_Format(PyExc_ValueError,
                        "'axis' entry %d is out of bounds [-%d, %d)",
                        axis_orig, ndim, ndim);
                return NPY_FAIL;
            }
            if (out_axis_flags[axis]) {
                PyErr_SetString(PyExc_ValueError,
                        "duplicate value in 'axis'");
                return NPY_FAIL;
            }
            out_axis_flags[axis] = 1;
        }

        return NPY_SUCCEED;
    }
    /* Try to interpret axis as an integer */
    else {
        int axis, axis_orig;

        memset(out_axis_flags, 0, ndim);

        axis = PyArray_PyIntAsInt_ErrMsg(axis_in,
                                   "an integer is required for the axis");
        axis_orig = axis;

        if (error_converting(axis)) {
            return NPY_FAIL;
        }
        if (axis < 0) {
            axis += ndim;
        }
        /*
         * Special case letting axis={-1,0} slip through for scalars,
         * for backwards compatibility reasons.
         */
        if (ndim == 0 && (axis == 0 || axis == -1)) {
            return NPY_SUCCEED;
        }

        if (axis < 0 || axis >= ndim) {
            PyErr_Format(PyExc_ValueError,
                    "'axis' entry %d is out of bounds [-%d, %d)",
                    axis_orig, ndim, ndim);
            return NPY_FAIL;
        }

        out_axis_flags[axis] = 1;

        return NPY_SUCCEED;
    }
}
NPY_NO_EXPORT int
PyArray_WeekMaskConverter(PyObject *weekmask_in, npy_bool *weekmask)
{
    PyObject *obj = weekmask_in;

    /* Make obj into an ASCII string if it is UNICODE */
    Py_INCREF(obj);
    if (PyUnicode_Check(obj)) {
        /* accept unicode input */
        PyObject *obj_str;
        obj_str = PyUnicode_AsASCIIString(obj);
        if (obj_str == NULL) {
            Py_DECREF(obj);
            return 0;
        }
        Py_DECREF(obj);
        obj = obj_str;
    }

    if (PyBytes_Check(obj)) {
        char *str;
        Py_ssize_t len;
        int i;

        if (PyBytes_AsStringAndSize(obj, &str, &len) < 0) {
            Py_DECREF(obj);
            return 0;
        }

        /* Length 7 is a string like "1111100" */
        if (len == 7) {
            for (i = 0; i < 7; ++i) {
                switch(str[i]) {
                    case '0':
                        weekmask[i] = 0;
                        break;
                    case '1':
                        weekmask[i] = 1;
                        break;
                    default:
                        goto general_weekmask_string;
                }
            }

            goto finish;
        }

general_weekmask_string:
        /* a string like "SatSun" or "Mon Tue Wed" */
        memset(weekmask, 0, 7);
        for (i = 0; i < len; i += 3) {
            while (isspace(str[i]))
                ++i;

            if (i == len) {
                goto finish;
            }
            else if (i + 2 >= len) {
                goto invalid_weekmask_string;
            }

            switch (str[i]) {
                case 'M':
                    if (str[i+1] == 'o' && str[i+2] == 'n') {
                        weekmask[0] = 1;
                    }
                    else {
                        goto invalid_weekmask_string;
                    }
                    break;
                case 'T':
                    if (str[i+1] == 'u' && str[i+2] == 'e') {
                        weekmask[1] = 1;
                    }
                    else if (str[i+1] == 'h' && str[i+2] == 'u') {
                        weekmask[3] = 1;
                    }
                    else {
                        goto invalid_weekmask_string;
                    }
                    break;
                case 'W':
                    if (str[i+1] == 'e' && str[i+2] == 'd') {
                        weekmask[2] = 1;
                    }
                    else {
                        goto invalid_weekmask_string;
                    }
                    break;
                case 'F':
                    if (str[i+1] == 'r' && str[i+2] == 'i') {
                        weekmask[4] = 1;
                    }
                    else {
                        goto invalid_weekmask_string;
                    }
                    break;
                case 'S':
                    if (str[i+1] == 'a' && str[i+2] == 't') {
                        weekmask[5] = 1;
                    }
                    else if (str[i+1] == 'u' && str[i+2] == 'n') {
                        weekmask[6] = 1;
                    }
                    else {
                        goto invalid_weekmask_string;
                    }
                    break;
                default:
                    goto invalid_weekmask_string;
            }
        }

        goto finish;

invalid_weekmask_string:
        PyErr_Format(PyExc_ValueError,
                "Invalid business day weekmask string \"%s\"",
                str);
        Py_DECREF(obj);
        return 0;
    }
    /* Something like [1,1,1,1,1,0,0] */
    else if (PySequence_Check(obj)) {
        if (PySequence_Size(obj) != 7 ||
                        (PyArray_Check(obj) &&
                         PyArray_NDIM((PyArrayObject *)obj) != 1)) {
            PyErr_SetString(PyExc_ValueError,
                "A business day weekmask array must have length 7");
            Py_DECREF(obj);
            return 0;
        }
        else {
            int i;

            for (i = 0; i < 7; ++i) {
                long val;
                PyObject *f = PySequence_GetItem(obj, i);
                if (f == NULL) {
                    Py_DECREF(obj);
                    return 0;
                }

                val = PyInt_AsLong(f);
                if (error_converting(val)) {
                    Py_DECREF(f);
                    Py_DECREF(obj);
                    return 0;
                }
                if (val == 0) {
                    weekmask[i] = 0;
                }
                else if (val == 1) {
                    weekmask[i] = 1;
                }
                else {
                    PyErr_SetString(PyExc_ValueError,
                        "A business day weekmask array must have all "
                        "1's and 0's");
                    Py_DECREF(f);
                    Py_DECREF(obj);
                    return 0;
                }
                Py_DECREF(f);
            }

            goto finish;
        }
    }

    PyErr_SetString(PyExc_ValueError,
            "Couldn't convert object into a business day weekmask");
    Py_DECREF(obj);
    return 0;

finish:
    Py_DECREF(obj);
    return 1;
}
示例#9
0
static npy_intp
PyArray_PyIntAsIntp_ErrMsg(PyObject *o, const char * msg)
{
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
    long long long_value = -1;
#else
    long long_value = -1;
#endif
    PyObject *obj, *err;

    /*
     * Be a bit stricter and not allow bools.
     * np.bool_ is also disallowed as Boolean arrays do not currently
     * support index.
     */
    if (!o || PyBool_Check(o) || PyArray_IsScalar(o, Bool)) {
        PyErr_SetString(PyExc_TypeError, msg);
        return -1;
    }

    /*
     * Since it is the usual case, first check if o is an integer. This is
     * an exact check, since otherwise __index__ is used.
     */
#if !defined(NPY_PY3K)
    if (PyInt_CheckExact(o)) {
  #if (NPY_SIZEOF_LONG <= NPY_SIZEOF_INTP)
        /* No overflow is possible, so we can just return */
        return PyInt_AS_LONG(o);
  #else
        long_value = PyInt_AS_LONG(o);
        goto overflow_check;
  #endif
    }
    else
#endif
    if (PyLong_CheckExact(o)) {
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
        long_value = PyLong_AsLongLong(o);
#else
        long_value = PyLong_AsLong(o);
#endif
        return (npy_intp)long_value;
    }

    /*
     * The most general case. PyNumber_Index(o) covers everything
     * including arrays. In principle it may be possible to replace
     * the whole function by PyIndex_AsSSize_t after deprecation.
     */
    obj = PyNumber_Index(o);
    if (obj == NULL) {
        return -1;
    }
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
    long_value = PyLong_AsLongLong(obj);
#else
    long_value = PyLong_AsLong(obj);
#endif
    Py_DECREF(obj);

    if (error_converting(long_value)) {
        err = PyErr_Occurred();
        /* Only replace TypeError's here, which are the normal errors. */
        if (PyErr_GivenExceptionMatches(err, PyExc_TypeError)) {
            PyErr_SetString(PyExc_TypeError, msg);
        }
        return -1;
    }
    goto overflow_check; /* silence unused warning */

overflow_check:
#if (NPY_SIZEOF_LONG < NPY_SIZEOF_INTP)
  #if (NPY_SIZEOF_LONGLONG > NPY_SIZEOF_INTP)
    if ((long_value < NPY_MIN_INTP) || (long_value > NPY_MAX_INTP)) {
        PyErr_SetString(PyExc_OverflowError,
                "Python int too large to convert to C numpy.intp");
        return -1;
    }
  #endif
#else
  #if (NPY_SIZEOF_LONG > NPY_SIZEOF_INTP)
    if ((long_value < NPY_MIN_INTP) || (long_value > NPY_MAX_INTP)) {
        PyErr_SetString(PyExc_OverflowError,
                "Python int too large to convert to C numpy.intp");
        return -1;
    }
  #endif
#endif
    return long_value;
}