DYT/Tool/OpenSceneGraph-3.6.5/include/cpl_list.h
2024-12-25 07:49:36 +08:00

60 lines
1.7 KiB
C

/**********************************************************************
* $Id$
*
* Name: cpl_list.h
* Project: CPL - Common Portability Library
* Purpose: List functions.
* Author: Andrey Kiselev, dron@remotesensing.org
*
**********************************************************************
* Copyright (c) 2003, Andrey Kiselev <dron@remotesensing.org>
*
* SPDX-License-Identifier: MIT
****************************************************************************/
#ifndef CPL_LIST_H_INCLUDED
#define CPL_LIST_H_INCLUDED
#include "cpl_port.h"
/**
* \file cpl_list.h
*
* Simplest list implementation. List contains only pointers to stored
* objects, not objects itself. All operations regarding allocation and
* freeing memory for objects should be performed by the caller.
*
*/
CPL_C_START
/** List element structure. */
typedef struct _CPLList CPLList;
/** List element structure. */
struct _CPLList
{
/*! Pointer to the data object. Should be allocated and freed by the
* caller.
* */
void *pData;
/*! Pointer to the next element in list. NULL, if current element is the
* last one.
*/
struct _CPLList *psNext;
};
CPLList CPL_DLL *CPLListAppend(CPLList *psList, void *pData);
CPLList CPL_DLL *CPLListInsert(CPLList *psList, void *pData, int nPosition);
CPLList CPL_DLL *CPLListGetLast(CPLList *psList);
CPLList CPL_DLL *CPLListGet(CPLList *const psList, int nPosition);
int CPL_DLL CPLListCount(const CPLList *psList);
CPLList CPL_DLL *CPLListRemove(CPLList *psList, int nPosition);
void CPL_DLL CPLListDestroy(CPLList *psList);
CPLList CPL_DLL *CPLListGetNext(const CPLList *psElement);
void CPL_DLL *CPLListGetData(const CPLList *psElement);
CPL_C_END
#endif /* CPL_LIST_H_INCLUDED */