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//  ratio.hpp  ---------------------------------------------------------------//

//  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_HPP
#define BOOST_RATIO_RATIO_HPP

#include <boost/ratio/ratio_fwd.hpp>
#include <boost/ratio/detail/gcd_lcm.hpp>

namespace boost
{

// extension used by Chrono

template <class R1, class R2> using ratio_gcd = typename ratio<
    ratio_detail::gcd<R1::num, R2::num>::value,
    ratio_detail::lcm<R1::den, R2::den>::value>::type;

}  // namespace boost

#endif  // BOOST_RATIO_RATIO_HPP

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Name	Size	Perms	Modified	Actions
detail DIR	-	drwxr-xr-x	2026-02-11 07:32:10	Edit Download recursive recursive
config.hpp	477 B	lrw-r--r--	2026-01-27 23:50:52	Edit Download recursive recursive
include.hpp	408 B	lrw-r--r--	2026-01-27 23:50:52	Edit Download recursive recursive
ratio.hpp	1.46 KB	lrw-r--r--	2026-01-27 23:50:52	Edit Download recursive recursive
ratio_fwd.hpp	2.24 KB	lrw-r--r--	2026-01-27 23:50:52	Edit Download recursive recursive
ratio_io.hpp	13.09 KB	lrw-r--r--	2026-01-27 23:50:52	Edit Download recursive recursive

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