2014-03-31 05:58:24 +00:00
|
|
|
/*=============================================================================
|
2017-07-29 05:20:01 +00:00
|
|
|
Copyright (c) 2011-2017 Bolero MURAKAMI
|
2014-03-31 05:58:24 +00:00
|
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
|
|
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
|
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
|
=============================================================================*/
|
|
|
|
|
#ifndef SPROUT_BIT_ROTR_HPP
|
|
|
|
|
#define SPROUT_BIT_ROTR_HPP
|
|
|
|
|
|
|
|
|
|
#include <climits>
|
|
|
|
|
#include <type_traits>
|
|
|
|
|
#include <sprout/config.hpp>
|
|
|
|
|
#include <sprout/bit/shlr.hpp>
|
|
|
|
|
|
|
|
|
|
namespace sprout {
|
|
|
|
|
//
|
|
|
|
|
// rotr
|
|
|
|
|
//
|
|
|
|
|
template<typename Integral>
|
|
|
|
|
inline SPROUT_CONSTEXPR typename std::enable_if<
|
|
|
|
|
std::is_integral<Integral>::value,
|
|
|
|
|
Integral
|
|
|
|
|
>::type
|
|
|
|
|
rotr(Integral x, int s) SPROUT_NOEXCEPT {
|
|
|
|
|
return sprout::shlr(x, s) | (x << (sizeof(x) * CHAR_BIT - s));
|
|
|
|
|
}
|
|
|
|
|
} // namespace sprout
|
|
|
|
|
|
|
|
|
|
#endif // #ifndef SPROUT_BIT_ROTR_HPP
|
