2 * This file is part of the GROMACS molecular simulation package.
4 * Copyright (c) 2016,2017,2018, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
14 * GROMACS is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with GROMACS; if not, see
21 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * If you want to redistribute modifications to GROMACS, please
25 * consider that scientific software is very special. Version
26 * control is crucial - bugs must be traceable. We will be happy to
27 * consider code for inclusion in the official distribution, but
28 * derived work must not be called official GROMACS. Details are found
29 * in the README & COPYING files - if they are missing, get the
30 * official version at http://www.gromacs.org.
32 * To help us fund GROMACS development, we humbly ask that you cite
33 * the research papers on the package. Check out http://www.gromacs.org.
37 * Declares implementations for IOptionValueStore.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_options
42 #ifndef GMX_OPTIONS_VALUESTORE_H
43 #define GMX_OPTIONS_VALUESTORE_H
47 #include "gromacs/options/ivaluestore.h"
48 #include "gromacs/utility/arrayref.h"
54 class OptionValueStorePlain : public IOptionValueStore<T>
57 OptionValueStorePlain(T *store, int *storeCount, int initialCount)
58 : count_(initialCount), store_(store), storeCount_(storeCount)
62 int valueCount() override { return count_; }
63 ArrayRef<T> values() override { return arrayRefFromArray(store_, count_); }
67 if (storeCount_ != nullptr)
69 *storeCount_ = count_;
72 void reserve(size_t /*count*/) override
75 void append(const T &value) override
77 store_[count_] = value;
79 if (storeCount_ != nullptr)
81 *storeCount_ = count_;
92 class OptionValueStoreVector : public IOptionValueStore<T>
95 explicit OptionValueStoreVector(std::vector<T> *store) : store_(store) {}
97 int valueCount() override { return static_cast<int>(store_->size()); }
98 ArrayRef<T> values() override { return *store_; }
99 void clear() override { store_->clear(); }
100 void reserve(size_t count) override
102 store_->reserve(store_->size() + count);
104 void append(const T &value) override
106 store_->push_back(value);
110 std::vector<T> *store_;
113 // Specialization that works around std::vector<bool> specialities.
115 class OptionValueStoreVector<bool> : public IOptionValueStore<bool>
118 explicit OptionValueStoreVector(std::vector<bool> *store) : store_(store)
122 int valueCount() override { return static_cast<int>(store_->size()); }
123 ArrayRef<bool> values() override
125 return arrayRefFromArray(reinterpret_cast<bool *>(boolStore_.data()),
128 void clear() override
133 void reserve(size_t count) override
135 boolStore_.reserve(boolStore_.size() + count);
136 store_->reserve(store_->size() + count);
138 void append(const bool &value) override
140 boolStore_.push_back({value});
141 store_->push_back(value);
150 std::vector<Bool> boolStore_;
151 std::vector<bool> *store_;
156 * Value storage that does not store anywhere.
158 * This is needed because even though the values are not stored anywhere, the
159 * code still expects to access them later through valueCount() and values().
161 * \ingroup module_options
163 template <typename T>
164 class OptionValueStoreNull : public IOptionValueStore<T>
167 OptionValueStoreNull() : store_(&vector_) {}
169 int valueCount() override { return store_.valueCount(); }
170 ArrayRef<T> values() override { return store_.values(); }
171 void clear() override { store_.clear(); }
172 void reserve(size_t count) override { store_.reserve(count); }
173 void append(const T &value) override { store_.append(value); }
176 std::vector<T> vector_;
177 OptionValueStoreVector<T> store_;