default_simd_length.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2021, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2021, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <seqan3/utility/detail/integer_traits.hpp>
 
namespace seqan3::detail
{
 
template <template <typename, size_t> typename simd_backend_t>
constexpr auto default_simd_max_length = 0u;
 
template <typename scalar_t, template <typename, size_t> typename simd_backend_t>
constexpr auto default_simd_length = []
{
    constexpr auto max_length = default_simd_max_length<simd_backend_t>;
    if constexpr (max_length == 0)
        return min_viable_uint_v<1u>;
    else
        return min_viable_uint_v<max_length / sizeof(scalar_t)>;
}();
 
} // namespace seqan3::detail