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.. 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
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.. rst-class:: align-right
built-in predicate
.. index:: pair: current_category/1; Built-in predicate .. _predicates_current_category_1:
::
current_category(Category)
Enumerates, by backtracking, all currently defined categories. All categories are found, either static, dynamic, or built-in.
::
current_category(?category_identifier) - zero_or_more
| Category
is neither a variable nor a valid category identifier:
| type_error(category_identifier, Category)
::
% enumerate the defined categories:
| ?- current_category(Category)
.
Category = core_messages ; ...
.. seealso::
:ref:predicates_abolish_category_1
,
:ref:predicates_category_property_2
,
:ref:predicates_create_category_4
,
:ref:predicates_complements_object_2
,
:ref:predicates_extends_category_2_3
,
:ref:predicates_imports_category_2_3