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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2017 Gael Guennebaud <gael.guennebaud@inria.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef EIGEN_RESHAPED_HELPER_H
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#define EIGEN_RESHAPED_HELPER_H
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// IWYU pragma: private
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#include "../InternalHeaderCheck.h"
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namespace Eigen {
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enum AutoSize_t { AutoSize };
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const int AutoOrder = 2;
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namespace internal {
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template <typename SizeType, typename OtherSize, int TotalSize>
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struct get_compiletime_reshape_size {
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enum { value = get_fixed_value<SizeType>::value };
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};
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template <typename SizeType>
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Index get_runtime_reshape_size(SizeType size, Index /*other*/, Index /*total*/) {
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return internal::get_runtime_value(size);
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}
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template <typename OtherSize, int TotalSize>
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struct get_compiletime_reshape_size<AutoSize_t, OtherSize, TotalSize> {
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enum {
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other_size = get_fixed_value<OtherSize>::value,
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value = (TotalSize == Dynamic || other_size == Dynamic) ? Dynamic : TotalSize / other_size
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};
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};
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inline Index get_runtime_reshape_size(AutoSize_t /*size*/, Index other, Index total) { return total / other; }
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constexpr int get_compiletime_reshape_order(int flags, int order) {
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return order == AutoOrder ? flags & RowMajorBit : order;
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}
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} // namespace internal
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} // end namespace Eigen
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#endif // EIGEN_RESHAPED_HELPER_H
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