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# csutil/strhash.h

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    00001 /*
    00002     Copyright (C) 2002 by Jorrit Tyberghein
    00003
    00004     This library is free software; you can redistribute it and/or
    00005     modify it under the terms of the GNU Library General Public
    00006     License as published by the Free Software Foundation; either
    00007     version 2 of the License, or (at your option) any later version.
    00008
    00009     This library is distributed in the hope that it will be useful,
    00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012     Library General Public License for more details.
    00013
    00014     You should have received a copy of the GNU Library General Public
    00015     License along with this library; if not, write to the Free
    00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00017 */
    00018
    00019 #ifndef __CS_STRHASH_H__
    00020 #define __CS_STRHASH_H__
    00021
    00022 #include "csextern.h"
    00023 #include "csutil/hash.h"
    00024 #include "csutil/mempool.h"
    00025 #include "iutil/strset.h"
    00026
    00038 class CS_CRYSTALSPACE_EXPORT csStringHash
    00039 {
    00040 private:
    00041   typedef csHash<csStringID, char const*> HashType;
    00042   HashType registry;
    00043   csMemoryPool pool;
    00044
    00045   void Copy(csStringHash const&);
    00046
    00047 public:
    00048   typedef HashType::ConstGlobalIterator GlobalIterator;
    00049
    00050 public:
    00052   csStringHash (size_t size = 23);
    00054   csStringHash (csStringHash const& h) { Copy(h); }
    00056   ~csStringHash ();
    00058   csStringHash& operator=(csStringHash const& h) { Copy(h); return *this; }
    00059
    00079   const char* Register (const char* s, csStringID id = 0);
    00080
    00086   csStringID Request (const char* s) const;
    00087
    00098   const char* Request (csStringID id) const;
    00099
    00105   bool Contains(char const* s) const
    00106   { return Request(s) != csInvalidStringID; }
    00107
    00116   bool Contains(csStringID id) const
    00117   { return Request(id) != 0; }
    00118
    00123   bool Delete(char const* s);
    00124
    00131   bool Delete(csStringID id);
    00132
    00136   void Empty ();
    00137
    00142   /*CS_DEPRECATED_METHOD("Use Empty() instead.")*/
    00143   void Clear ()
    00144   { Empty(); }
    00145
    00147   size_t GetSize () const
    00148   { return registry.GetSize (); }
    00149
    00155   bool IsEmpty() const
    00156   { return GetSize() == 0; }
    00157
    00163   GlobalIterator GetIterator () const
    00164   { return registry.GetIterator(); }
    00165 };
    00166
    00167 #endif // __CS_STRHASH_H__