Dogcows Code - chaz/yoink/blob - src/Moof/HashTools.hh

   1
   2 /*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
   3 **]  All rights reserved.
   4 *
   5 * vi:ts=4 sw=4 tw=75
   6 *
   7 * Distributable under the terms and conditions of the 2-clause BSD license;
   8 * see the file COPYING for a complete text of the license.
   9 *
  10 **************************************************************************/
  11
  12 #ifndef _MOOF_HASHTOOLS_HH_
  13 #define _MOOF_HASHTOOLS_HH_
  14
  15 #include <string>
  16
  17 #include <stlplus/hash.hpp>
  18
  19
  20 namespace Mf {
  21
  22
  23 struct HashFunction
  24 {
  25         // generic hash function
  26         unsigned operator()(const void* key, int len,
  27                                                 unsigned seed = -1) const;
  28
  29         inline unsigned operator()(const std::string& val) const
  30         {
  31                 return (*this)(val.data(), val.length());
  32         }
  33
  34         inline unsigned operator()(int val) const
  35         {
  36                 return val;
  37         }
  38 };
  39
  40
  41 } // namespace Mf
  42
  43 #endif // _MOOF_HASHTOOLS_HH_
  44