/** * @file llstrider.h * * $LicenseInfo:firstyear=2001&license=viewergpl$ * * Copyright (c) 2001-2009, Linden Research, Inc. * * Second Life Viewer Source Code * The source code in this file ("Source Code") is provided by Linden Lab * to you under the terms of the GNU General Public License, version 2.0 * ("GPL"), unless you have obtained a separate licensing agreement * ("Other License"), formally executed by you and Linden Lab. Terms of * the GPL can be found in doc/GPL-license.txt in this distribution, or * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 * * There are special exceptions to the terms and conditions of the GPL as * it is applied to this Source Code. View the full text of the exception * in the file doc/FLOSS-exception.txt in this software distribution, or * online at * http://secondlifegrid.net/programs/open_source/licensing/flossexception * * By copying, modifying or distributing this software, you acknowledge * that you have read and understood your obligations described above, * and agree to abide by those obligations. * * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, * COMPLETENESS OR PERFORMANCE. * $/LicenseInfo$ */ #ifndef LL_LLSTRIDER_H #define LL_LLSTRIDER_H #include "stdtypes.h" template <class Object> class LLStrider { union { Object* mObjectp; U8* mBytep; }; U32 mSkip; public: LLStrider() { mObjectp = NULL; mSkip = sizeof(Object); } ~LLStrider() { } const LLStrider<Object>& operator = (Object *first) { mObjectp = first; return *this;} void setStride (S32 skipBytes) { mSkip = (skipBytes ? skipBytes : sizeof(Object));} void skip(const U32 index) { mBytep += mSkip*index;} Object* get() { return mObjectp; } Object* operator->() { return mObjectp; } Object& operator *() { return *mObjectp; } Object* operator ++(int) { Object* old = mObjectp; mBytep += mSkip; return old; } Object* operator +=(int i) { mBytep += mSkip*i; return mObjectp; } Object& operator[](U32 index) { return *(Object*)(mBytep + (mSkip * index)); } }; #endif // LL_LLSTRIDER_H