libstdc++-v3/src/c++98/hash_tr1.cc

   1 // std::tr1::hash definitions -*- C++ -*-
   2
   3 // Copyright (C) 2007-2018 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 #define _GLIBCXX_USE_CXX11_ABI 0
  26 #include <string>
  27 #include <tr1/functional>
  28
  29 #include "hash-long-double-tr1-aux.cc"
  30
  31 namespace std _GLIBCXX_VISIBILITY(default)
  32 {
  33   namespace tr1
  34   {
  35 #ifndef _GLIBCXX_LONG_DOUBLE_COMPAT_IMPL
  36   template<>
  37     size_t
  38     hash<string>::operator()(string __s) const
  39     { return _Fnv_hash::hash(__s.data(), __s.length()); }
  40
  41   template<>
  42     size_t
  43     hash<const string&>::operator()(const string& __s) const
  44     { return _Fnv_hash::hash(__s.data(), __s.length()); }
  45
  46 #ifdef _GLIBCXX_USE_WCHAR_T
  47   template<>
  48     size_t
  49     hash<wstring>::operator()(wstring __s) const
  50     { return _Fnv_hash::hash(__s.data(), __s.length() * sizeof(wchar_t)); }
  51
  52   template<>
  53     size_t
  54     hash<const wstring&>::operator()(const wstring& __s) const
  55     { return _Fnv_hash::hash(__s.data(), __s.length() * sizeof(wchar_t)); }
  56 #endif
  57 #endif
  58   }
  59 }