/* Copyright (c) Emir Pasic, All rights reserved. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3.0 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library. See the file LICENSE included with this distribution for more information. */ package stacks type Interface interface { Push(value interface{}) Pop() (value interface{}, ok bool) Peek() (value interface{}, ok bool) Empty() bool Size() int Clear() }