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filledarray.hh
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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
#ifndef DUNE_COMMON_FILLED_ARRAY_HH
#define DUNE_COMMON_FILLED_ARRAY_HH
#include <array>
#include <cstddef>
#include <utility>
#include <dune/common/indices.hh>
namespace Dune
{
template<std::size_t n, class T>
constexpr std::array<T, n> filledArray(const T& t)
{
return unpackIntegerSequence([&](auto... i) {
return std::array<T, n>{((void)(i),t)...};
}, std::make_index_sequence<n>{});
}
} // end namespace Dune
#endif // DUNE_COMMON_FILLED_ARRAY_HH
indices.hh
Dune::filledArray
constexpr std::array< T, n > filledArray(const T &t)
Return an array filled with the provided value.
Definition filledarray.hh:33
Dune::unpackIntegerSequence
decltype(auto) constexpr unpackIntegerSequence(F &&f, std::integer_sequence< I, i... > sequence)
Unpack an std::integer_sequence<I,i...> to std::integral_constant<I,i>...
Definition indices.hh:124
Dune
Dune namespace
Definition alignedallocator.hh:13