1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2018 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 terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 3, or (at your option) any later
9 // version.
10 
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 // General Public License for more details.
15 
16 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING3.  If not see
18 // <http://www.gnu.org/licenses/>.
19 
20 
21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
22 
23 // Permission to use, copy, modify, sell, and distribute this software
24 // is hereby granted without fee, provided that the above copyright
25 // notice appears in all copies, and that both that copyright notice
26 // and this permission notice appear in supporting documentation. None
27 // of the above authors, nor IBM Haifa Research Laboratories, make any
28 // representation about the suitability of this software for any
29 // purpose. It is provided "as is" without express or implied
30 // warranty.
31 
32 /**
33  * @file prog_bar.hpp
34  * Contains a progress bar - idea taken from boost::timer by Beman Dawes.
35  */
36 
37 #ifndef PB_DS_PROG_BAR_HPP
38 #define PB_DS_PROG_BAR_HPP
39 
40 #include <limits.h>
41 #include <iostream>
42 #include <string>
43 
44 namespace __gnu_pbds
45 {
46 
47   namespace test
48   {
49 
50     /**
51      * Progress bar.
52      * Simplified from part of boost::timer by Beman Dawes.
53      **/
54     class prog_bar
55     {
56     protected:
57       enum{num_disp = 40};
58 
59     public:
60       prog_bar(std::size_t max, std::ostream& r_os, bool display = true);
61 
62       void
63       inc();
64 
65     private:
66       prog_bar(const prog_bar& );
67 
68       prog_bar&
69       operator=(const prog_bar& );
70 
71     private:
72       std::size_t m_cur;
73       const std::size_t m_max;
74 
75       std::size_t m_cur_disp;
76 
77       std::ostream& m_r_os;
78 
79       bool m_display;
80     };
81 
82   } // namespace test
83 
84 } // namespace __gnu_pbds
85 
86 #endif // #ifndef PB_DS_PROG_BAR_HPP
87