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csutil/weakrefarr.h

00001 /*
00002   Crystal Space Weak Reference array
00003   Copyright (C) 2004 by Jorrit Tyberghein
00004 
00005   This library is free software; you can redistribute it and/or
00006   modify it under the terms of the GNU Library General Public
00007   License as published by the Free Software Foundation; either
00008   version 2 of the License, or (at your option) any later version.
00009 
00010   This library is distributed in the hope that it will be useful,
00011   but WITHOUT ANY WARRANTY; without even the implied warranty of
00012   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013   Library General Public License for more details.
00014 
00015   You should have received a copy of the GNU Library General Public
00016   License along with this library; if not, write to the Free
00017   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_WEAKREFARR_H__
00021 #define __CS_WEAKREFARR_H__
00022 
00023 //-----------------------------------------------------------------------------
00024 // Note *1*: The explicit "this->" is needed by modern compilers (such as gcc
00025 // 3.4.x) which distinguish between dependent and non-dependent names in
00026 // templates.  See: http://gcc.gnu.org/onlinedocs/gcc/Name-lookup.html
00027 //-----------------------------------------------------------------------------
00028 
00029 #include "csextern.h"
00030 #include "weakref.h"
00031 #include "array.h"
00032 
00036 template <class T>
00037 class csWeakRefArray : public csSafeCopyArray<csWeakRef<T> >
00038 {
00039 public:
00044   csWeakRefArray (int ilimit = 0, int ithreshold = 0)
00045         : csSafeCopyArray<csWeakRef<T> > (ilimit, ithreshold)
00046   {
00047   }
00048 
00053   void Compact ()
00054   {
00055     int i = this->Length ()-1; // see *1*
00056     while (i >= 0)
00057     {
00058       if (this->Get (i) == 0)  // see *1*
00059         this->DeleteIndex (i);
00060       i--;
00061     }
00062   }
00063 };
00064 
00065 #endif // __CS_WEAKREFARR_H__

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