40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
/**
|
|
* @file llstrider.h
|
|
*
|
|
* Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
|
|
* $License$
|
|
*/
|
|
|
|
#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
|