LCOV - app.info - /tools/gcc-4.5/include/c++/4.5.2/backward/hash_fun.h

LCOV - code coverage report
| Current view: | directory - tools/gcc-4.5/include/c++/4.5.2/backward - hash_fun.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 2 | 0 | 0.0 %
| Date: | 2012-04-21 | Functions: | 1 | 0 | 0.0 %

           1                 : // 'struct hash' from SGI -*- C++ -*-
           2                 :
           3                 : // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009, 2010
           4                 : // Free Software Foundation, Inc.
           5                 : //
           6                 : // This file is part of the GNU ISO C++ Library.  This library is free
           7                 : // software; you can redistribute it and/or modify it under the
           8                 : // terms of the GNU General Public License as published by the
           9                 : // Free Software Foundation; either version 3, or (at your option)
          10                 : // any later version.
          11                 :
          12                 : // This library is distributed in the hope that it will be useful,
          13                 : // but WITHOUT ANY WARRANTY; without even the implied warranty of
          14                 : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
          15                 : // GNU General Public License for more details.
          16                 :
          17                 : // Under Section 7 of GPL version 3, you are granted additional
          18                 : // permissions described in the GCC Runtime Library Exception, version
          19                 : // 3.1, as published by the Free Software Foundation.
          20                 :
          21                 : // You should have received a copy of the GNU General Public License and
          22                 : // a copy of the GCC Runtime Library Exception along with this program;
          23                 : // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
          24                 : // <http://www.gnu.org/licenses/>.
          25                 :
          26                 : /*
          27                 :  * Copyright (c) 1996-1998
          28                 :  * Silicon Graphics Computer Systems, Inc.
          29                 :  *
          30                 :  * Permission to use, copy, modify, distribute and sell this software
          31                 :  * and its documentation for any purpose is hereby granted without fee,
          32                 :  * provided that the above copyright notice appear in all copies and
          33                 :  * that both that copyright notice and this permission notice appear
          34                 :  * in supporting documentation.  Silicon Graphics makes no
          35                 :  * representations about the suitability of this software for any
          36                 :  * purpose.  It is provided "as is" without express or implied warranty.
          37                 :  *
          38                 :  *
          39                 :  * Copyright (c) 1994
          40                 :  * Hewlett-Packard Company
          41                 :  *
          42                 :  * Permission to use, copy, modify, distribute and sell this software
          43                 :  * and its documentation for any purpose is hereby granted without fee,
          44                 :  * provided that the above copyright notice appear in all copies and
          45                 :  * that both that copyright notice and this permission notice appear
          46                 :  * in supporting documentation.  Hewlett-Packard Company makes no
          47                 :  * representations about the suitability of this software for any
          48                 :  * purpose.  It is provided "as is" without express or implied warranty.
          49                 :  *
          50                 :  */
          51                 :
          52                 : /** @file backward/hash_fun.h
          53                 :  *  This file is a GNU extension to the Standard C++ Library (possibly
          54                 :  *  containing extensions from the HP/SGI STL subset).
          55                 :  */
          56                 :
          57                 : #ifndef _BACKWARD_HASH_FUN_H
          58                 : #define _BACKWARD_HASH_FUN_H 1
          59                 :
          60                 : #include <cstddef>
          61                 :
          62                 : _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
          63                 :
          64                 :   using std::size_t;
          65                 :
          66                 :   template<class _Key>
          67                 :     struct hash { };
          68                 :
          69                 :   inline size_t
          70                 :   __stl_hash_string(const char* __s)
          71                 :   {
          72                 :     unsigned long __h = 0;
          73                 :     for ( ; *__s; ++__s)
          74                 :       __h = 5 * __h + *__s;
          75                 :     return size_t(__h);
          76                 :   }
          77                 :
          78                 :   template<>
          79                 :     struct hash<char*>
          80                 :     {
          81                 :       size_t
          82                 :       operator()(const char* __s) const
          83                 :       { return __stl_hash_string(__s); }
          84                 :     };
          85                 :
          86                 :   template<>
          87                 :     struct hash<const char*>
          88                 :     {
          89                 :       size_t
          90                 :       operator()(const char* __s) const
          91                 :       { return __stl_hash_string(__s); }
          92                 :     };
          93                 :
          94                 :   template<>
          95                 :     struct hash<char>
          96                 :     {
          97                 :       size_t
          98                 :       operator()(char __x) const
          99                 :       { return __x; }
         100                 :     };
         101                 :
         102                 :   template<>
         103                 :     struct hash<unsigned char>
         104                 :     {
         105                 :       size_t
         106                 :       operator()(unsigned char __x) const
         107                 :       { return __x; }
         108                 :     };
         109                 :
         110                 :   template<>
         111                 :     struct hash<signed char>
         112                 :     {
         113                 :       size_t
         114                 :       operator()(unsigned char __x) const
         115                 :       { return __x; }
         116                 :     };
         117                 :
         118                 :   template<>
         119                 :     struct hash<short>
         120                 :     {
         121                 :       size_t
         122                 :       operator()(short __x) const
         123                 :       { return __x; }
         124                 :     };
         125                 :
         126                 :   template<>
         127                 :     struct hash<unsigned short>
         128                 :     {
         129                 :       size_t
         130                 :       operator()(unsigned short __x) const
         131                 :       { return __x; }
         132                 :     };
         133                 :
         134                 :   template<>
         135                 :     struct hash<int>
         136                 :     {
         137                 :       size_t
         138               0 :       operator()(int __x) const
         139               0 :       { return __x; }
         140                 :     };
         141                 :
         142                 :   template<>
         143                 :     struct hash<unsigned int>
         144                 :     {
         145                 :       size_t
         146                 :       operator()(unsigned int __x) const
         147                 :       { return __x; }
         148                 :     };
         149                 :
         150                 :   template<>
         151                 :     struct hash<long>
         152                 :     {
         153                 :       size_t
         154                 :       operator()(long __x) const
         155                 :       { return __x; }
         156                 :     };
         157                 :
         158                 :   template<>
         159                 :     struct hash<unsigned long>
         160                 :     {
         161                 :       size_t
         162                 :       operator()(unsigned long __x) const
         163                 :       { return __x; }
         164                 :     };
         165                 :
         166                 : _GLIBCXX_END_NAMESPACE
         167                 :
         168                 : #endif

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