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authorAlexander Kabaev <kan@FreeBSD.org>2004-07-28 03:12:05 +0000
committerAlexander Kabaev <kan@FreeBSD.org>2004-07-28 03:12:05 +0000
commitffeaf689a248da869b6bc8d4fd2233dfe513c060 (patch)
tree75ef0e6da73746d6849e25a0996ae34e1aeff51d /contrib/libstdc++/include/ext/hash_fun.h
parent9a63ad9273061dc19cbd117762e365ea9634e241 (diff)
Gcc 3.4.2 20040728 C++ support bits.
Notes
Notes: svn path=/vendor/gcc/dist/; revision=132720
Diffstat (limited to 'contrib/libstdc++/include/ext/hash_fun.h')
-rw-r--r--contrib/libstdc++/include/ext/hash_fun.h122
1 files changed, 122 insertions, 0 deletions
diff --git a/contrib/libstdc++/include/ext/hash_fun.h b/contrib/libstdc++/include/ext/hash_fun.h
new file mode 100644
index 000000000000..27453a6b006b
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+++ b/contrib/libstdc++/include/ext/hash_fun.h
@@ -0,0 +1,122 @@
+// 'struct hash' from SGI -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING. If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction. Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License. This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+/*
+ * Copyright (c) 1996-1998
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ */
+
+/** @file ext/hash_fun.h
+ * This file is a GNU extension to the Standard C++ Library (possibly
+ * containing extensions from the HP/SGI STL subset). You should only
+ * include this header if you are using GCC 3 or later.
+ */
+
+#ifndef _HASH_FUN_H
+#define _HASH_FUN_H 1
+
+#include <cstddef>
+
+namespace __gnu_cxx
+{
+ using std::size_t;
+
+ template <class _Key> struct hash { };
+
+ inline size_t
+ __stl_hash_string(const char* __s)
+ {
+ unsigned long __h = 0;
+ for ( ; *__s; ++__s)
+ __h = 5*__h + *__s;
+ return size_t(__h);
+ }
+
+ template<> struct hash<char*>
+ {
+ size_t operator()(const char* __s) const
+ { return __stl_hash_string(__s); }
+ };
+
+ template<> struct hash<const char*>
+ {
+ size_t operator()(const char* __s) const
+ { return __stl_hash_string(__s); }
+ };
+
+ template<> struct hash<char>
+ { size_t operator()(char __x) const { return __x; } };
+
+ template<> struct hash<unsigned char>
+ { size_t operator()(unsigned char __x) const { return __x; } };
+
+ template<> struct hash<signed char>
+ { size_t operator()(unsigned char __x) const { return __x; } };
+
+ template<> struct hash<short>
+ { size_t operator()(short __x) const { return __x; } };
+
+ template<> struct hash<unsigned short>
+ { size_t operator()(unsigned short __x) const { return __x; } };
+
+ template<> struct hash<int>
+ { size_t operator()(int __x) const { return __x; } };
+
+ template<> struct hash<unsigned int>
+ { size_t operator()(unsigned int __x) const { return __x; } };
+
+ template<> struct hash<long>
+ { size_t operator()(long __x) const { return __x; } };
+
+ template<> struct hash<unsigned long>
+ { size_t operator()(unsigned long __x) const { return __x; } };
+} // namespace __gnu_cxx
+
+#endif