blas1_scaled.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2023 Tobias Hienzsch
 
#ifndef TETL_LINALG_BLAS1_SCALED_HPP
#define TETL_LINALG_BLAS1_SCALED_HPP
 
#include <etl/_linalg/accessor_scaled.hpp>
#include <etl/_linalg/concepts.hpp>
 
namespace etl::linalg {
 
/// \ingroup linalg
template <typename ScalingFactor, typename ElementType, typename Extents, typename Layout, typename Accessor>
[[nodiscard]] constexpr auto scaled(ScalingFactor alpha, mdspan<ElementType, Extents, Layout, Accessor> x)
{
    return mdspan{
        x.data_handle(),
        x.mapping(),
        accessor_scaled{alpha, x.accessor()}
    };
}
 
} // namespace etl::linalg
 
#endif // TETL_LINALG_BLAS1_SCALED_HPP