kopia lustrzana https://gitlab.com/sane-project/backends
149 wiersze
5.6 KiB
C++
149 wiersze
5.6 KiB
C++
/* sane - Scanner Access Now Easy.
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Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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#ifndef BACKEND_GENESYS_SERIALIZE_H
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#define BACKEND_GENESYS_SERIALIZE_H
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#include "error.h"
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#include <array>
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#include <iostream>
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#include <limits>
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#include <string>
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#include <vector>
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namespace genesys {
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// it would be best to use something like boost.serialization
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inline void serialize_newline(std::ostream& str) { str << '\n'; }
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inline void serialize_newline(std::istream& str) { (void) str; }
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inline void serialize(std::ostream& str, bool x) { str << static_cast<unsigned>(x) << " "; }
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inline void serialize(std::istream& str, bool& x) { unsigned v; str >> v; x = v; }
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inline void serialize(std::ostream& str, char x) { str << static_cast<int>(x) << " "; }
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inline void serialize(std::istream& str, char& x) { int v; str >> v; x = v; }
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inline void serialize(std::ostream& str, unsigned char x) { str << static_cast<unsigned>(x) << " "; }
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inline void serialize(std::istream& str, unsigned char& x) { unsigned v; str >> v; x = v; }
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inline void serialize(std::ostream& str, signed char x) { str << static_cast<int>(x) << " "; }
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inline void serialize(std::istream& str, signed char& x) { int v; str >> v; x = v; }
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inline void serialize(std::ostream& str, short x) { str << x << " "; }
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inline void serialize(std::istream& str, short& x) { str >> x; }
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inline void serialize(std::ostream& str, unsigned short x) { str << x << " "; }
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inline void serialize(std::istream& str, unsigned short& x) { str >> x; }
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inline void serialize(std::ostream& str, int x) { str << x << " "; }
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inline void serialize(std::istream& str, int& x) { str >> x; }
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inline void serialize(std::ostream& str, unsigned int x) { str << x << " "; }
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inline void serialize(std::istream& str, unsigned int& x) { str >> x; }
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inline void serialize(std::ostream& str, long x) { str << x << " "; }
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inline void serialize(std::istream& str, long& x) { str >> x; }
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inline void serialize(std::ostream& str, unsigned long x) { str << x << " "; }
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inline void serialize(std::istream& str, unsigned long& x) { str >> x; }
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inline void serialize(std::ostream& str, long long x) { str << x << " "; }
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inline void serialize(std::istream& str, long long& x) { str >> x; }
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inline void serialize(std::ostream& str, unsigned long long x) { str << x << " "; }
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inline void serialize(std::istream& str, unsigned long long& x) { str >> x; }
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inline void serialize(std::ostream& str, float x) { str << x << " "; }
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inline void serialize(std::istream& str, float& x) { str >> x; }
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inline void serialize(std::ostream& str, double x) { str << x << " "; }
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inline void serialize(std::istream& str, double& x) { str >> x; }
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inline void serialize(std::ostream& str, const std::string& x) { str << x << " "; }
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inline void serialize(std::istream& str, std::string& x) { str >> x; }
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template<class T>
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void serialize(std::ostream& str, std::vector<T>& x)
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{
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serialize(str, x.size());
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serialize_newline(str);
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for (auto& item : x) {
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serialize(str, item);
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serialize_newline(str);
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}
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}
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template<class T>
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void serialize(std::istream& str, std::vector<T>& x,
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size_t max_size = std::numeric_limits<size_t>::max())
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{
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size_t new_size;
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serialize(str, new_size);
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if (new_size > max_size) {
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throw SaneException("Too large std::vector to deserialize");
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}
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x.reserve(new_size);
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for (size_t i = 0; i < new_size; ++i) {
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T item;
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serialize(str, item);
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x.push_back(item);
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}
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}
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template<class T, size_t Size>
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void serialize(std::ostream& str, std::array<T, Size>& x)
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{
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serialize(str, x.size());
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serialize_newline(str);
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for (auto& item : x) {
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serialize(str, item);
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serialize_newline(str);
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}
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}
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template<class T, size_t Size>
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void serialize(std::istream& str, std::array<T, Size>& x)
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{
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size_t new_size;
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serialize(str, new_size);
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if (new_size > Size) {
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throw SaneException("Incorrect std::array size to deserialize");
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}
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for (auto& item : x) {
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serialize(str, item);
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}
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}
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} // namespace genesys
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#endif
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