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ptrstack.h

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00001 /***************************************************************************
00002  *cr
00003  *cr            (C) Copyright 1995-2019 The Board of Trustees of the
00004  *cr                        University of Illinois
00005  *cr                         All Rights Reserved
00006  *cr
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  * RCS INFORMATION:
00011  *
00012  *      $RCSfile: ptrstack.h,v $
00013  *      $Author: johns $        $Locker:  $             $State: Exp $
00014  *      $Revision: 1.3 $      $Date: 2019/01/17 21:21:03 $
00015  *
00016  ***************************************************************************
00017  * DESCRIPTION:
00018  *   Trivial stack implementation for use in eliminating recursion
00019  *   in molecule graph traversal algorithms.
00020  *
00021  ***************************************************************************/
00022 
00023 #ifdef __cplusplus
00024 extern "C" {
00025 #endif
00026 
00027 typedef void * PtrStackHandle;
00028 
00029 PtrStackHandle ptrstack_create(int size);
00030 void ptrstack_destroy(PtrStackHandle voidhandle);
00031 int ptrstack_compact(PtrStackHandle voidhandle);
00032 int ptrstack_push(PtrStackHandle voidhandle, void *p);
00033 int ptrstack_pop(PtrStackHandle voidhandle, void **p);
00034 int ptrstack_popall(PtrStackHandle voidhandle);
00035 int ptrstack_empty(PtrStackHandle voidhandle);
00036 
00037 #ifdef __cplusplus
00038 }
00039 #endif
00040 

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