/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * Jonathan Schleifer <js@heap.zone> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFEnumerator.h" OF_ASSUME_NONNULL_BEGIN /*! * @protocol OFCollection OFCollection.h ObjFW/OFCollection.h * * @brief A protocol with methods common for all collections. */ @protocol OFCollection <OFEnumerating, OFFastEnumeration> #ifdef OF_HAVE_PROPERTIES @property (readonly) size_t count; #endif /*! * @brief Returns the number of objects in the collection. * * @return The number of objects in the collection */ - (size_t)count; /*! * @brief Checks whether the collection contains an object equal to the * specified object. * * @param object The object which is checked for being in the collection * @return A boolean whether the collection contains the specified object */ - (bool)containsObject: (nullable id)object; @end OF_ASSUME_NONNULL_END