96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
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/// @file dpf/prg_dummy.hpp
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/// @brief
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/// @details
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/// @author Ryan Henry <ryan.henry@ucalgary.ca>
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/// @copyright Copyright (c) 2019-2024 Ryan Henry and [others](@ref authors)
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/// @license Released under a GNU General Public v2.0 (GPLv2) license;
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/// see [LICENSE.md](@ref license) for details.
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#ifndef LIBDPF_INCLUDE_DPF_PRG_DUMMY_HPP__
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#define LIBDPF_INCLUDE_DPF_PRG_DUMMY_HPP__
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#include <array>
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#include <algorithm>
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#include <cstddef>
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#include "hedley/hedley.h"
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#include "portable-snippets/exact-int/exact-int.h"
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#include "dpf/utils.hpp"
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namespace dpf
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{
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namespace prg
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{
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struct dummy final
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{
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using block_type = simde__m128i;
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HEDLEY_NO_THROW
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HEDLEY_ALWAYS_INLINE
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HEDLEY_CONST
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static block_type eval(block_type seed, psnip_uint32_t) noexcept
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{
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return seed;
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}
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HEDLEY_NO_THROW
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HEDLEY_ALWAYS_INLINE
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HEDLEY_CONST
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static auto eval01(block_type seed) noexcept
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{
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HEDLEY_PRAGMA(GCC diagnostic push)
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HEDLEY_PRAGMA(GCC diagnostic ignored "-Wignored-attributes")
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return std::array<block_type, 2>{seed, seed};
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HEDLEY_PRAGMA(GCC diagnostic pop)
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}
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HEDLEY_NO_THROW
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HEDLEY_ALWAYS_INLINE
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static void eval(block_type seed, block_type * HEDLEY_RESTRICT output,
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psnip_uint32_t count_, psnip_uint32_t = 0) noexcept
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{
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std::fill_n(output, count_, seed);
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}
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HEDLEY_NO_THROW
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HEDLEY_ALWAYS_INLINE
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static void eval01_x4(const block_type * HEDLEY_RESTRICT seeds,
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block_type * HEDLEY_RESTRICT left,
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block_type * HEDLEY_RESTRICT right) noexcept
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{
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for (std::size_t i = 0; i < 4; ++i)
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{
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left[i] = right[i] = seeds[i];
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}
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}
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HEDLEY_NO_THROW
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HEDLEY_ALWAYS_INLINE
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static void eval_x4(const block_type * HEDLEY_RESTRICT seeds,
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block_type * HEDLEY_RESTRICT output, psnip_uint32_t = 0) noexcept
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{
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std::copy_n(seeds, 4, output);
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}
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HEDLEY_NO_THROW
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HEDLEY_ALWAYS_INLINE
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static void eval_x8(const block_type * HEDLEY_RESTRICT seeds,
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block_type * HEDLEY_RESTRICT output, psnip_uint32_t = 0) noexcept
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{
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std::copy_n(seeds, 8, output);
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}
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/// Raw-bit subtractive share of `T` for party `Party` (see `prg.hpp`).
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template <typename T, std::size_t Party>
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static auto expand(block_type seed, psnip_uint32_t pos = 0) noexcept;
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}; // struct dummy
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} // namespace prg
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} // namespace dpf
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#endif // LIBDPF_INCLUDE_DPF_PRG_DUMMY_HPP__
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