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This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2023 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.

meta

This library provides implementations of common meta-predicates. The meta object implements common meta-predicates like map/3 and fold_left/4.

See also the meta_compiler library, which provides optimized compilation of meta-predicate calls.

API documentation

Open the [../../docs/library_index.html#meta](../../docs/library_index.html#meta) link in a web browser.

Loading

To load the main entities in this library, load the loader.lgt file:

| ?- logtalk_load(meta(loader)).

Testing

To test this library predicates, load the tester.lgt file:

| ?- logtalk_load(meta(tester)).

Usage

See e.g. the metapredicates example and unit tests.