libstdc++-v3/testsuite/util/io/prog_bar.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006 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 2, 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 COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 // MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free
  22 // software library without restriction.  Specifically, if other files
  23 // instantiate templates or use macros or inline functions from this
  24 // file, or you compile this file and link it with other files to
  25 // produce an executable, this file does not by itself cause the
  26 // resulting executable to be covered by the GNU General Public
  27 // License.  This exception does not however invalidate any other
  28 // reasons why the executable file might be covered by the GNU General
  29 // Public License.
  30
  31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  32
  33 // Permission to use, copy, modify, sell, and distribute this software
  34 // is hereby granted without fee, provided that the above copyright
  35 // notice appears in all copies, and that both that copyright notice
  36 // and this permission notice appear in supporting documentation. None
  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
  39 // purpose. It is provided "as is" without express or implied
  40 // warranty.
  41
  42 /**
  43  * @file prog_bar.hpp
  44  * Contains a progress bar - idea taken from boost::timer by Beman Dawes.
  45  */
  46
  47 #ifndef PB_DS_PROG_BAR_HPP
  48 #define PB_DS_PROG_BAR_HPP
  49
  50 #include <limits.h>
  51 #include <iostream>
  52 #include <string>
  53
  54 namespace pb_ds
  55 {
  56
  57   namespace test
  58   {
  59
  60     /**
  61      * Progress bar.
  62      * Simplified from part of boost::timer by Beman Dawes.
  63      **/
  64     class prog_bar
  65     {
  66     protected:
  67       enum{num_disp = 40};
  68
  69     public:
  70       prog_bar(size_t max, std::ostream& r_os, bool display = true);
  71
  72       void
  73       inc();
  74
  75     private:
  76       prog_bar(const prog_bar& );
  77
  78       prog_bar&
  79       operator=(const prog_bar& );
  80
  81     private:
  82       size_t m_cur;
  83       const size_t m_max;
  84
  85       size_t m_cur_disp;
  86
  87       std::ostream& m_r_os;
  88
  89       bool m_display;
  90     };
  91
  92   } // namespace test
  93
  94 } // namespace pb_ds
  95
  96 #endif // #ifndef PB_DS_PROG_BAR_HPP