..
   This file is part of Logtalk <https://logtalk.org/>  
   SPDX-FileCopyrightText: 1998-2024 Paulo Moura <pmoura@logtalk.org>
   SPDX-License-Identifier: Apache-2.0

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.


.. rst-class:: align-right

**built-in method**

.. index:: pair: system_error/0; Built-in method
.. _methods_system_error_0:

``system_error/0``
==================

Description
-----------

::

   system_error

Throws a system error. Used when runtime execution can no longer proceed. For
example, an exception is thrown without an active catcher. This built-in method
is declared private and thus cannot be used as a message to an object. Calling
this predicate is equivalent to the following sequence of goals:

::

   ...,
   context(Context),
   throw(error(system_error, Context)).

This allows the user to generate errors in the same format used by the
runtime.

Modes and number of proofs
--------------------------

::

   system_error - error

Errors
------

| When called:
|     ``system_error``

Examples
--------

(none)

.. seealso::

   :ref:`methods_catch_3`,
   :ref:`methods_throw_1`,
   :ref:`methods_context_1`,
   :ref:`methods_instantiation_error_0`,
   :ref:`methods_uninstantiation_error_1`,
   :ref:`methods_type_error_2`,
   :ref:`methods_domain_error_2`,
   :ref:`methods_existence_error_2`,
   :ref:`methods_permission_error_3`,
   :ref:`methods_representation_error_1`
   :ref:`methods_evaluation_error_1`,
   :ref:`methods_resource_error_1`,
   :ref:`methods_syntax_error_1`,
