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Diffstat (limited to '3rdParty/Boost/src/boost/ratio/ratio_fwd.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/ratio/ratio_fwd.hpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/ratio/ratio_fwd.hpp b/3rdParty/Boost/src/boost/ratio/ratio_fwd.hpp new file mode 100644 index 0000000..0882e0b --- /dev/null +++ b/3rdParty/Boost/src/boost/ratio/ratio_fwd.hpp @@ -0,0 +1,84 @@ +// ratio_fwd.hpp ---------------------------------------------------------------// + +// Copyright 2008 Howard Hinnant +// Copyright 2008 Beman Dawes +// Copyright 2009 Vicente J. Botet Escriba + +// Distributed under the Boost Software License, Version 1.0. +// See http://www.boost.org/LICENSE_1_0.txt + +/* + +This code was derived by Beman Dawes from Howard Hinnant's time2_demo prototype. +Many thanks to Howard for making his code available under the Boost license. +The original code was modified to conform to Boost conventions and to section +20.4 Compile-time rational arithmetic [ratio], of the C++ committee working +paper N2798. +See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2798.pdf. + +time2_demo contained this comment: + + Much thanks to Andrei Alexandrescu, + Walter Brown, + Peter Dimov, + Jeff Garland, + Terry Golubiewski, + Daniel Krugler, + Anthony Williams. +*/ + +// The way overflow is managed for ratio_less is taken from llvm/libcxx/include/ratio + +#ifndef BOOST_RATIO_RATIO_FWD_HPP +#define BOOST_RATIO_RATIO_FWD_HPP + +#include <boost/ratio/config.hpp> + +namespace boost +{ + +//----------------------------------------------------------------------------// +// // +// 20.6 Compile-time rational arithmetic [ratio] // +// // +//----------------------------------------------------------------------------// + +// ratio +template <boost::intmax_t N, boost::intmax_t D = 1> class ratio; + +// ratio arithmetic +template <class R1, class R2> struct ratio_add; +template <class R1, class R2> struct ratio_subtract; +template <class R1, class R2> struct ratio_multiply; +template <class R1, class R2> struct ratio_divide; + +// ratio comparison +template <class R1, class R2> struct ratio_equal; +template <class R1, class R2> struct ratio_not_equal; +template <class R1, class R2> struct ratio_less; +template <class R1, class R2> struct ratio_less_equal; +template <class R1, class R2> struct ratio_greater; +template <class R1, class R2> struct ratio_greater_equal; + +// convenience SI typedefs +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(1000000000000000000)> atto; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(1000000000000000)> femto; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(1000000000000)> pico; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(1000000000)> nano; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(1000000)> micro; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(1000)> milli; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(100)> centi; +typedef ratio<BOOST_RATIO_INTMAX_C(1), BOOST_RATIO_INTMAX_C(10)> deci; +typedef ratio< BOOST_RATIO_INTMAX_C(10), BOOST_RATIO_INTMAX_C(1)> deca; +typedef ratio< BOOST_RATIO_INTMAX_C(100), BOOST_RATIO_INTMAX_C(1)> hecto; +typedef ratio< BOOST_RATIO_INTMAX_C(1000), BOOST_RATIO_INTMAX_C(1)> kilo; +typedef ratio< BOOST_RATIO_INTMAX_C(1000000), BOOST_RATIO_INTMAX_C(1)> mega; +typedef ratio< BOOST_RATIO_INTMAX_C(1000000000), BOOST_RATIO_INTMAX_C(1)> giga; +typedef ratio< BOOST_RATIO_INTMAX_C(1000000000000), BOOST_RATIO_INTMAX_C(1)> tera; +typedef ratio< BOOST_RATIO_INTMAX_C(1000000000000000), BOOST_RATIO_INTMAX_C(1)> peta; +typedef ratio<BOOST_RATIO_INTMAX_C(1000000000000000000), BOOST_RATIO_INTMAX_C(1)> exa; + +} // namespace boost + + +#endif // BOOST_RATIO_HPP |