| // TR2 <ratio> -*- C++ -*- |
| |
| // Copyright (C) 2010-2014 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 |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file tr2/ratio |
| * This is a TR2 C++ Library header. |
| */ |
| |
| #include <ratio> |
| |
| namespace std _GLIBCXX_VISIBILITY(default) |
| { |
| namespace tr2 |
| { |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| |
| template<intmax_t _Pn, size_t _Bit, |
| bool = _Bit < static_cast<size_t> |
| (std::numeric_limits<intmax_t>::digits)> |
| struct __safe_lshift |
| { static const intmax_t __value = 0; }; |
| |
| template<intmax_t _Pn, size_t _Bit> |
| struct __safe_lshift<_Pn, _Bit, true> |
| { static const intmax_t __value = _Pn << _Bit; }; |
| |
| /// Add binary prefixes (IEC 60027-2 A.2 and ISO/IEC 80000). |
| typedef ratio<__safe_lshift<1, 10>::__value, 1> kibi; |
| typedef ratio<__safe_lshift<1, 20>::__value, 1> mebi; |
| typedef ratio<__safe_lshift<1, 30>::__value, 1> gibi; |
| typedef ratio<__safe_lshift<1, 40>::__value, 1> tebi; |
| typedef ratio<__safe_lshift<1, 50>::__value, 1> pebi; |
| typedef ratio<__safe_lshift<1, 60>::__value, 1> exbi; |
| //typedef ratio<__safe_lshift<1, 70>::__value, 1> zebi; |
| //typedef ratio<__safe_lshift<1, 80>::__value, 1> yobi; |
| |
| _GLIBCXX_END_NAMESPACE_VERSION |
| } |
| } |