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/*
* Copyright (C) 2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* License header from dragonbox
* https://github.com/jk-jeon/dragonbox/blob/master/LICENSE-Boost
* https://github.com/jk-jeon/dragonbox/blob/master/LICENSE-Apache2-LLVM
*/
#pragma once
#include <wtf/dragonbox/detail/util.h>
namespace WTF {
namespace dragonbox {
namespace detail {
////////////////////////////////////////////////////////////////////////////////////////
// Bit operation intrinsics.
////////////////////////////////////////////////////////////////////////////////////////
namespace bits {
// Most compilers should be able to optimize this into the ROR instruction.
inline constexpr uint32_t rotr(uint32_t n, uint32_t r) noexcept
{
r &= 31;
return (n >> r) | (n << (32 - r));
}
inline constexpr uint64_t rotr(uint64_t n, uint32_t r) noexcept
{
r &= 63;
return (n >> r) | (n << (64 - r));
}
} // namespace bits
} // namespace detail
} // namespace dragonbox
} // namespace WTF
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