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- /*==============================================================================
- Project: POV
-
- Version: 3
-
- File: LnkLst.h
-
- Description:
- Routines to handle linked lists
- ------------------------------------------------------------------------------
- Author:
- Eduard [esp] Schwan
- ------------------------------------------------------------------------------
- from Persistence of Vision(tm) Ray Tracer
- Copyright 1996 Persistence of Vision Team
- ------------------------------------------------------------------------------
- NOTICE: This source code file is provided so that users may experiment
- with enhancements to POV-Ray and to port the software to platforms other
- than those supported by the POV-Ray Team. There are strict rules under
- which you are permitted to use this file. The rules are in the file
- named POVLEGAL.DOC which should be distributed with this file. If
- POVLEGAL.DOC is not available or for more info please contact the POV-Ray
- Team Coordinator by leaving a message in CompuServe's Graphics Developer's
- Forum. The latest version of POV-Ray may be found there as well.
-
- This program is based on the popular DKB raytracer version 2.12.
- DKBTrace was originally written by David K. Buck.
- DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
- ------------------------------------------------------------------------------
- Change History:
- ==============================================================================*/
-
- #ifndef LNKLST_H
- #define LNKLST_H
-
- typedef unsigned short LLIndex_t;
-
- // An Element struct, holds link refs and ptr to actual data
- typedef struct
- {
- void* fNext;
- void* fPrev;
- void* fData;
- } LLElRec, *LLElPtr, **LLElHdl;
-
- // A Header struct, holds info for one linked list
- typedef struct
- {
- short fMaxElements;
- short fNumElements;
- LLElPtr fFirstElement;
- LLElPtr fLastElement;
- } LLHeadRec, *LLHeadPtr, **LLHeadHdl;
-
- // NOTE: Index is 1..n
-
- // House keeping
-
- LLHeadPtr LLCreateList(short MaxElements);
-
- void LLDestroyList(LLHeadPtr LL);
-
- void LLDeleteAllElements(LLHeadPtr LL);
-
- // Add
-
- void LLAddElementByIndex(LLHeadPtr LL, void * DataPtr, short Index);
- void LLAppendElement(LLHeadPtr LL, void * DataPtr);
-
- // Delete
-
- void LLDeleteElementByIndex(LLHeadPtr LL, short Index);
-
- // Gets
-
- short LLGetMaxElements(LLHeadPtr LL);
-
- short LLGetNumElements(LLHeadPtr LL);
-
- void * LLGetElementByIndex(LLHeadPtr LL, short Index);
-
- #ifdef LLTEST
- void LLTest(void);
- #endif
-
- #endif
-