1*e4b17023SJohn Marino// TR2 <ratio> -*- C++ -*- 2*e4b17023SJohn Marino 3*e4b17023SJohn Marino// Copyright (C) 2010, 2011 Free Software Foundation, Inc. 4*e4b17023SJohn Marino// 5*e4b17023SJohn Marino// This file is part of the GNU ISO C++ Library. This library is free 6*e4b17023SJohn Marino// software; you can redistribute it and/or modify it under the 7*e4b17023SJohn Marino// terms of the GNU General Public License as published by the 8*e4b17023SJohn Marino// Free Software Foundation; either version 3, or (at your option) 9*e4b17023SJohn Marino// any later version. 10*e4b17023SJohn Marino 11*e4b17023SJohn Marino// This library is distributed in the hope that it will be useful, 12*e4b17023SJohn Marino// but WITHOUT ANY WARRANTY; without even the implied warranty of 13*e4b17023SJohn Marino// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14*e4b17023SJohn Marino// GNU General Public License for more details. 15*e4b17023SJohn Marino 16*e4b17023SJohn Marino// Under Section 7 of GPL version 3, you are granted additional 17*e4b17023SJohn Marino// permissions described in the GCC Runtime Library Exception, version 18*e4b17023SJohn Marino// 3.1, as published by the Free Software Foundation. 19*e4b17023SJohn Marino 20*e4b17023SJohn Marino// You should have received a copy of the GNU General Public License and 21*e4b17023SJohn Marino// a copy of the GCC Runtime Library Exception along with this program; 22*e4b17023SJohn Marino// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23*e4b17023SJohn Marino// <http://www.gnu.org/licenses/>. 24*e4b17023SJohn Marino 25*e4b17023SJohn Marino/** @file tr2/ratio 26*e4b17023SJohn Marino * This is a TR2 C++ Library header. 27*e4b17023SJohn Marino */ 28*e4b17023SJohn Marino 29*e4b17023SJohn Marino#include <ratio> 30*e4b17023SJohn Marino 31*e4b17023SJohn Marinonamespace std _GLIBCXX_VISIBILITY(default) 32*e4b17023SJohn Marino{ 33*e4b17023SJohn Marinonamespace tr2 34*e4b17023SJohn Marino{ 35*e4b17023SJohn Marino_GLIBCXX_BEGIN_NAMESPACE_VERSION 36*e4b17023SJohn Marino 37*e4b17023SJohn Marino template<intmax_t _Pn, size_t _Bit, 38*e4b17023SJohn Marino bool = _Bit < static_cast<size_t> 39*e4b17023SJohn Marino (std::numeric_limits<intmax_t>::digits)> 40*e4b17023SJohn Marino struct __safe_lshift 41*e4b17023SJohn Marino { static const intmax_t __value = 0; }; 42*e4b17023SJohn Marino 43*e4b17023SJohn Marino template<intmax_t _Pn, size_t _Bit> 44*e4b17023SJohn Marino struct __safe_lshift<_Pn, _Bit, true> 45*e4b17023SJohn Marino { static const intmax_t __value = _Pn << _Bit; }; 46*e4b17023SJohn Marino 47*e4b17023SJohn Marino /// Add binary prefixes (IEC 60027-2 A.2 and ISO/IEC 80000). 48*e4b17023SJohn Marino typedef ratio<__safe_lshift<1, 10>::__value, 1> kibi; 49*e4b17023SJohn Marino typedef ratio<__safe_lshift<1, 20>::__value, 1> mebi; 50*e4b17023SJohn Marino typedef ratio<__safe_lshift<1, 30>::__value, 1> gibi; 51*e4b17023SJohn Marino typedef ratio<__safe_lshift<1, 40>::__value, 1> tebi; 52*e4b17023SJohn Marino typedef ratio<__safe_lshift<1, 50>::__value, 1> pebi; 53*e4b17023SJohn Marino typedef ratio<__safe_lshift<1, 60>::__value, 1> exbi; 54*e4b17023SJohn Marino //typedef ratio<__safe_lshift<1, 70>::__value, 1> zebi; 55*e4b17023SJohn Marino //typedef ratio<__safe_lshift<1, 80>::__value, 1> yobi; 56*e4b17023SJohn Marino 57*e4b17023SJohn Marino_GLIBCXX_END_NAMESPACE_VERSION 58*e4b17023SJohn Marino} 59*e4b17023SJohn Marino} 60