.. highlightlang:: us

.. _cast:

cast
====

.. index:: cast

.. us.tag  cast GERMAN New5140

:ref:`cast` führt eine C-cast-Operation durch, z. B. ``r = (double)(float) m``.

.. function::  r = cast(m, nType)

.. us.return

**Returnwert**

*r* ist eine real-Matrix.

.. us.params

**Parameter**

.. uparam:: m

   *m* ist eine real-Matrix.

.. uparam:: nType

   *nType* ist einer der folgenden Werte:

   .. list-table::
      :header-rows: 0

      * - CAST_INT8 (0)
      * - CAST_UINT8 (1)
      * - CAST_INT16 (2)
      * - CAST_UINT16 (3)
      * - CAST_INT32 (4)
      * - CAST_UINT32 (5)
      * - CAST_INT64 (6)
      * - CAST_UINT64 (7)
      * - CAST_FLOAT (8)
      * - CAST_FLOAT_STAR (9)    ``int i = (int) m; r = (double)*(float*) &i``

.. us.example

**Beispiel**

::

   * cast(500, CAST_INT8)
     -12.0000 
   * cast(500, CAST_UINT8)
     244.0000 
   * cast(500, CAST_UINT16)
     500.0000
   * cast(1130332544, CAST_FLOAT_STAR)
     223.5059 

.. seealso::
   :ref:`uberblick-mathematik`,
   :ref:`ceil`,
   :ref:`floor`,
   :ref:`int`

:sub:`id-1438918`