Remove old autovect-branch by moving to "dead" directory.
[official-gcc.git] / old-autovect-branch / libstdc++-v3 / testsuite / ext / pb_assoc / example / hash_mod.cc
blob70f7af2c99789d459df0156c74ad14a6db2fbba7
1 // -*- C++ -*-
3 // Copyright (C) 2005 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 2, or (at your option)
9 // any later version.
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 // USA.
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
30 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
32 // Permission to use, copy, modify, sell, and distribute this software
33 // is hereby granted without fee, provided that the above copyright
34 // notice appears in all copies, and that both that copyright notice and
35 // this permission notice appear in supporting documentation. None of
36 // the above authors, nor IBM Haifa Research Laboratories, make any
37 // representation about the suitability of this software for any
38 // purpose. It is provided "as is" without express or implied warranty.
40 /**
41 * @file hash_mod_example.cpp
42 * An example showing how to use a mod range-hasing function
45 // For cc_hash_assoc_cntnr.
46 #include <ext/pb_assoc/assoc_cntnr.hpp>
47 // For direct_mask_range_hashing and hash_standard_resize_policy.
48 #include <ext/pb_assoc/hash_policy.hpp>
49 // For unary_function, binary_function.
50 #include <functional>
52 * A simple hash functor.
53 * std::hash could serve instead of this functor,
54 * but it is not yet standard everywhere.
56 struct int_hash : public std::unary_function<
57 int,
58 size_t>
60 inline size_t
61 operator()(int i) const
63 return (i);
67 int
68 main()
71 * A collision-chaining hash table mapping ints to chars.
73 typedef
74 pb_assoc::cc_hash_assoc_cntnr<
75 int,
76 char,
77 int_hash,
78 std::equal_to<int>,
79 // Combining function.
80 pb_assoc::direct_mod_range_hashing<> >
81 map_t;
83 map_t c;
85 c[32] = 'b';
86 c[1024] = 'c';
87 c[4096] = 'd';