llstrider.h
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- /**
- * @file llstrider.h
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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