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# csutil/weakrefarr.h

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    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
    00027 //-----------------------------------------------------------------------------
    00028 // Note *1*: The explicit "this->" is needed by modern compilers (such as gcc
    00029 // 3.4.x) which distinguish between dependent and non-dependent names in
    00030 // templates.  See: http://gcc.gnu.org/onlinedocs/gcc/Name-lookup.html
    00031 //-----------------------------------------------------------------------------
    00032
    00033 #include "csextern.h"
    00034 #include "csutil/array.h"
    00035 #include "csutil/weakref.h"
    00036
    00040 template <class T>
    00041 class csWeakRefArray : public csSafeCopyArray<csWeakRef<T> >
    00042 {
    00043 public:
    00048   csWeakRefArray (int ilimit = 0, int ithreshold = 0)
    00049         : csSafeCopyArray<csWeakRef<T> > (ilimit, ithreshold)
    00050   {
    00051   }
    00052
    00057   void Compact ()
    00058   {
    00059     size_t i = this->Length (); // see *1*
    00060     while (i > 0)
    00061     {
    00062       i--;
    00063       if (this->Get (i) == 0)  // see *1*
    00064         this->DeleteIndex (i);
    00065     }
    00066   }
    00067 };
    00068
    00069 #endif // __CS_WEAKREFARR_H__