---

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.

To load this example and for sample queries, please see the SCRIPT.txt file.

This folder contains an example of using parametric objects to represent and restore shared variables between sets of constraints that are stored in different objects. This solution is applied to process modeling where constraints are used to represent run dependencies between processes. Part of the process description is a set of finite domain constraints describing how many times the process can or must be executed. An object parameter is used to provide access to the process constraint variable. See the comments in the process_modeling.lgt file for further details.

This example can be run using B-Prolog, ECLiPSe, GNU Prolog, SICStus Prolog, SWI-Prolog, or YAP as the backend compiler (by using an ugly solution thanks to the lack of standardization of CLP(FD) constraint libraries).