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Diffstat (limited to 'libnbtplusplus/include/endian_str.h')
| -rw-r--r-- | libnbtplusplus/include/endian_str.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/libnbtplusplus/include/endian_str.h b/libnbtplusplus/include/endian_str.h new file mode 100644 index 0000000000..a21a87f94b --- /dev/null +++ b/libnbtplusplus/include/endian_str.h @@ -0,0 +1,114 @@ +/* + * SPDX-FileCopyrightText: 2013, 2015 ljfa-ag <ljfa-ag@web.de> + * + * SPDX-License-Identifier: LGPL-3.0-or-later + */ + +/* + * libnbt++ - A library for the Minecraft Named Binary Tag format. + * Copyright (C) 2013, 2015 ljfa-ag + * + * This file is part of libnbt++. + * + * libnbt++ 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. + * + * libnbt++ 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 libnbt++. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef ENDIAN_STR_H_INCLUDED +#define ENDIAN_STR_H_INCLUDED + +#include <cstdint> +#include <iosfwd> +#include "nbt_export.h" + +/** + * @brief Reading and writing numbers from and to streams + * in binary format with different byte orders. + */ +namespace endian +{ + + enum endian { little, big }; + + /// Reads number from stream in specified endian + template <class T> void read(std::istream& is, T& x, endian e); + + /// Reads number from stream in little endian + NBT_EXPORT void read_little(std::istream& is, uint8_t& x); + NBT_EXPORT void read_little(std::istream& is, uint16_t& x); + NBT_EXPORT void read_little(std::istream& is, uint32_t& x); + NBT_EXPORT void read_little(std::istream& is, uint64_t& x); + NBT_EXPORT void read_little(std::istream& is, int8_t& x); + NBT_EXPORT void read_little(std::istream& is, int16_t& x); + NBT_EXPORT void read_little(std::istream& is, int32_t& x); + NBT_EXPORT void read_little(std::istream& is, int64_t& x); + NBT_EXPORT void read_little(std::istream& is, float& x); + NBT_EXPORT void read_little(std::istream& is, double& x); + + /// Reads number from stream in big endian + NBT_EXPORT void read_big(std::istream& is, uint8_t& x); + NBT_EXPORT void read_big(std::istream& is, uint16_t& x); + NBT_EXPORT void read_big(std::istream& is, uint32_t& x); + NBT_EXPORT void read_big(std::istream& is, uint64_t& x); + NBT_EXPORT void read_big(std::istream& is, int8_t& x); + NBT_EXPORT void read_big(std::istream& is, int16_t& x); + NBT_EXPORT void read_big(std::istream& is, int32_t& x); + NBT_EXPORT void read_big(std::istream& is, int64_t& x); + NBT_EXPORT void read_big(std::istream& is, float& x); + NBT_EXPORT void read_big(std::istream& is, double& x); + + /// Writes number to stream in specified endian + template <class T> void write(std::ostream& os, T x, endian e); + + /// Writes number to stream in little endian + NBT_EXPORT void write_little(std::ostream& os, uint8_t x); + NBT_EXPORT void write_little(std::ostream& os, uint16_t x); + NBT_EXPORT void write_little(std::ostream& os, uint32_t x); + NBT_EXPORT void write_little(std::ostream& os, uint64_t x); + NBT_EXPORT void write_little(std::ostream& os, int8_t x); + NBT_EXPORT void write_little(std::ostream& os, int16_t x); + NBT_EXPORT void write_little(std::ostream& os, int32_t x); + NBT_EXPORT void write_little(std::ostream& os, int64_t x); + NBT_EXPORT void write_little(std::ostream& os, float x); + NBT_EXPORT void write_little(std::ostream& os, double x); + + /// Writes number to stream in big endian + NBT_EXPORT void write_big(std::ostream& os, uint8_t x); + NBT_EXPORT void write_big(std::ostream& os, uint16_t x); + NBT_EXPORT void write_big(std::ostream& os, uint32_t x); + NBT_EXPORT void write_big(std::ostream& os, uint64_t x); + NBT_EXPORT void write_big(std::ostream& os, int8_t x); + NBT_EXPORT void write_big(std::ostream& os, int16_t x); + NBT_EXPORT void write_big(std::ostream& os, int32_t x); + NBT_EXPORT void write_big(std::ostream& os, int64_t x); + NBT_EXPORT void write_big(std::ostream& os, float x); + NBT_EXPORT void write_big(std::ostream& os, double x); + + template <class T> void read(std::istream& is, T& x, endian e) + { + if (e == little) + read_little(is, x); + else + read_big(is, x); + } + + template <class T> void write(std::ostream& os, T x, endian e) + { + if (e == little) + write_little(os, x); + else + write_big(os, x); + } + +} // namespace endian + +#endif // ENDIAN_STR_H_INCLUDED |