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

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2025 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.cpp
  34  * Contains a progress bar - idea taken from boost::timer by Beman Dawes.
  35  */
  36
  37 #include <util/io/prog_bar.hpp>
  38
  39 namespace __gnu_pbds
  40 {
  41   namespace test
  42   {
  43     prog_bar::
  44     prog_bar(std::size_t max, std::ostream& r_os, bool display/*= true*/) :
  45       m_cur(0),
  46       m_max(max),
  47       m_cur_disp(0),
  48       m_r_os(r_os),
  49       m_display(display)
  50     {
  51       if (m_display == false)
  52         return;
  53
  54       for (std::size_t i = 0; i < num_disp; ++i)
  55         m_r_os << "-";
  56
  57       m_r_os << std::endl;
  58     }
  59
  60     void
  61     prog_bar::
  62     inc()
  63     {
  64       ++m_cur;
  65
  66       if (m_display == false)
  67         return;
  68
  69       while (m_cur * num_disp >= m_max * m_cur_disp && m_cur_disp < num_disp)
  70         {
  71           m_r_os << '*';
  72           m_r_os.flush();
  73           ++m_cur_disp;
  74         }
  75     }
  76
  77   } // namespace test
  78
  79 } // namespace __gnu_pbds