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construct/include/ircd/simd/cast.h

43 lines
1 KiB
C++

// The Construct
//
// Copyright (C) The Construct Developers, Authors & Contributors
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_CAST_H
namespace ircd::simd
{
template<class R,
class T>
const R *cast(const T *const &) noexcept;
template<class R,
class T>
R *cast(T *const &) noexcept;
}
template<class R,
class T>
inline R *
ircd::simd::cast(T *const &in)
noexcept
{
assert(uintptr_t(in) % std::alignment_of<R>::value == 0);
return reinterpret_cast<R *>(in);
}
template<class R,
class T>
inline const R *
ircd::simd::cast(const T *const &in)
noexcept
{
assert(uintptr_t(in) % std::alignment_of<R>::value == 0);
return reinterpret_cast<const R *>(in);
}