60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// TR2 <ratio> -*- C++ -*-
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// Copyright (C) 2010-2016 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file tr2/ratio
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* This is a TR2 C++ Library header.
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*/
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#include <ratio>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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namespace tr2
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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template<intmax_t _Pn, size_t _Bit,
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bool = _Bit < static_cast<size_t>
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(std::numeric_limits<intmax_t>::digits)>
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struct __safe_lshift
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{ static const intmax_t __value = 0; };
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template<intmax_t _Pn, size_t _Bit>
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struct __safe_lshift<_Pn, _Bit, true>
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{ static const intmax_t __value = _Pn << _Bit; };
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/// Add binary prefixes (IEC 60027-2 A.2 and ISO/IEC 80000).
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typedef ratio<__safe_lshift<1, 10>::__value, 1> kibi;
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typedef ratio<__safe_lshift<1, 20>::__value, 1> mebi;
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typedef ratio<__safe_lshift<1, 30>::__value, 1> gibi;
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typedef ratio<__safe_lshift<1, 40>::__value, 1> tebi;
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typedef ratio<__safe_lshift<1, 50>::__value, 1> pebi;
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typedef ratio<__safe_lshift<1, 60>::__value, 1> exbi;
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//typedef ratio<__safe_lshift<1, 70>::__value, 1> zebi;
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//typedef ratio<__safe_lshift<1, 80>::__value, 1> yobi;
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_GLIBCXX_END_NAMESPACE_VERSION
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}
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}
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