<h2>Editing File: /usr/include/c++/8/tr2/ratio</h2><form method='post'><textarea name='content' class='file-edit'>// TR2 &lt;ratio&gt; -*- C++ -*-

// Copyright (C) 2010-2018 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// &lt;http://www.gnu.org/licenses/&gt;.

/** @file tr2/ratio
 *  This is a TR2 C++ Library header.
 */

#include &lt;ratio&gt;

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

namespace tr2
{
  template&lt;intmax_t _Pn, size_t _Bit,
	     bool = _Bit &lt; static_cast&lt;size_t&gt;
			  (std::numeric_limits&lt;intmax_t&gt;::digits)&gt;
    struct __safe_lshift
    { static const intmax_t __value = 0; };

    template&lt;intmax_t _Pn, size_t _Bit&gt;
      struct __safe_lshift&lt;_Pn, _Bit, true&gt;
      { static const intmax_t __value = _Pn &lt;&lt; _Bit; };

  /// Add binary prefixes (IEC 60027-2 A.2 and ISO/IEC 80000).
  typedef ratio&lt;__safe_lshift&lt;1, 10&gt;::__value, 1&gt; kibi;
  typedef ratio&lt;__safe_lshift&lt;1, 20&gt;::__value, 1&gt; mebi;
  typedef ratio&lt;__safe_lshift&lt;1, 30&gt;::__value, 1&gt; gibi;
  typedef ratio&lt;__safe_lshift&lt;1, 40&gt;::__value, 1&gt; tebi;
  typedef ratio&lt;__safe_lshift&lt;1, 50&gt;::__value, 1&gt; pebi;
  typedef ratio&lt;__safe_lshift&lt;1, 60&gt;::__value, 1&gt; exbi;
  //typedef ratio&lt;__safe_lshift&lt;1, 70&gt;::__value, 1&gt; zebi;
  //typedef ratio&lt;__safe_lshift&lt;1, 80&gt;::__value, 1&gt; yobi;
}

_GLIBCXX_END_NAMESPACE_VERSION
}
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