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rAKA/src/common/aka_types_eigen_plain_object_base_plugin.hh
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aka_types_eigen_plain_object_base_plugin.hh
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/**
* Copyright (©) 2018-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*/
#define AKANTU_EIGEN_VERSION \
(EIGEN_WORLD_VERSION * 10000 + EIGEN_MAJOR_VERSION * 1000 + \
EIGEN_MAJOR_VERSION)
template <bool _is_vector = IsVectorAtCompileTime, typename _Derived = Derived,
std::enable_if_t<_is_vector> * = nullptr>
EIGEN_DEVICE_FUNC constexpr EIGEN_STRONG_INLINE
PlainObjectBase(std::initializer_list<Scalar> list) {
static_assert(std::is_trivially_copyable<Scalar>{},
"Cannot create a tensor on non trivial types");
_check_template_params();
this->template _init1<Index>(list.size());
Index i = 0;
for (auto val : list) {
this->operator()(i++) = val;
}
}
#if AKANTU_EIGEN_VERSION < 34000
template <bool _is_vector = IsVectorAtCompileTime, typename _Derived = Derived,
std::enable_if_t<not _is_vector> * = nullptr>
EIGEN_DEVICE_FUNC constexpr EIGEN_STRONG_INLINE
PlainObjectBase(std::initializer_list<std::initializer_list<Scalar>> list) {
static_assert(std::is_trivially_copyable<Scalar>{},
"Cannot create a tensor on non trivial types");
Index m = list.size();
Index n = 0;
for (auto row : list) {
n = std::max(n, Index(row.size()));
}
if (RowsAtCompileTime != -1 and RowsAtCompileTime != m) {
throw std::range_error(
"The size of the matrix does not correspond to the initializer_list");
}
if (ColsAtCompileTime != -1 and ColsAtCompileTime != n) {
throw std::range_error(
"The size of the matrix does not correspond to the initializer_list");
}
_check_template_params();
this->template _init2<Index, Index>(m, n);
this->fill(Scalar{});
Index i = 0, j = 0;
for (auto & row : list) {
for (auto & val : row) {
this->operator()(i, j++) = val;
}
++i;
j = 0;
}
}
#endif
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