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author | Petr Mrázek <peterix@gmail.com> | 2015-09-23 01:21:19 +0200 |
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committer | Petr Mrázek <peterix@gmail.com> | 2015-09-23 01:21:19 +0200 |
commit | 5d5bee49928e36d552c8df62bb820af82bd24032 (patch) | |
tree | b369d566368f1622ae2fd3a2b2c0021a4aa7b5b1 /depends/libnbtplusplus/src/endian_str.cpp | |
parent | e60a652b78af8f985862da726898291f807ae058 (diff) | |
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GH-1238 re-integrate nbt library
Diffstat (limited to 'depends/libnbtplusplus/src/endian_str.cpp')
m--------- | depends/libnbtplusplus | 0 | ||||
-rw-r--r-- | depends/libnbtplusplus/src/endian_str.cpp | 284 |
2 files changed, 0 insertions, 284 deletions
diff --git a/depends/libnbtplusplus b/depends/libnbtplusplus new file mode 160000 +Subproject 9d17b0a9b93e684a5ac6cac8f70d9a7909a877c diff --git a/depends/libnbtplusplus/src/endian_str.cpp b/depends/libnbtplusplus/src/endian_str.cpp deleted file mode 100644 index 8d136b09..00000000 --- a/depends/libnbtplusplus/src/endian_str.cpp +++ /dev/null @@ -1,284 +0,0 @@ -/* - * 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/>. - */ -#include "endian_str.h" -#include <climits> -#include <cstring> -#include <iostream> - -static_assert(CHAR_BIT == 8, "Assuming that a byte has 8 bits"); -static_assert(sizeof(float) == 4, "Assuming that a float is 4 byte long"); -static_assert(sizeof(double) == 8, "Assuming that a double is 8 byte long"); - -namespace endian -{ - -namespace //anonymous -{ - void pun_int_to_float(float& f, uint32_t i) - { - //Yes we need to do it this way to avoid undefined behavior - memcpy(&f, &i, 4); - } - - uint32_t pun_float_to_int(float f) - { - uint32_t ret; - memcpy(&ret, &f, 4); - return ret; - } - - void pun_int_to_double(double& d, uint64_t i) - { - memcpy(&d, &i, 8); - } - - uint64_t pun_double_to_int(double f) - { - uint64_t ret; - memcpy(&ret, &f, 8); - return ret; - } -} - -//------------------------------------------------------------------------------ - -void read_little(std::istream& is, uint8_t& x) -{ - is.get(reinterpret_cast<char&>(x)); -} - -void read_little(std::istream& is, uint16_t& x) -{ - uint8_t tmp[2]; - is.read(reinterpret_cast<char*>(tmp), 2); - x = uint16_t(tmp[0]) - | (uint16_t(tmp[1]) << 8); -} - -void read_little(std::istream& is, uint32_t& x) -{ - uint8_t tmp[4]; - is.read(reinterpret_cast<char*>(tmp), 4); - x = uint32_t(tmp[0]) - | (uint32_t(tmp[1]) << 8) - | (uint32_t(tmp[2]) << 16) - | (uint32_t(tmp[3]) << 24); -} - -void read_little(std::istream& is, uint64_t& x) -{ - uint8_t tmp[8]; - is.read(reinterpret_cast<char*>(tmp), 8); - x = uint64_t(tmp[0]) - | (uint64_t(tmp[1]) << 8) - | (uint64_t(tmp[2]) << 16) - | (uint64_t(tmp[3]) << 24) - | (uint64_t(tmp[4]) << 32) - | (uint64_t(tmp[5]) << 40) - | (uint64_t(tmp[6]) << 48) - | (uint64_t(tmp[7]) << 56); -} - -void read_little(std::istream& is, int8_t & x) { read_little(is, reinterpret_cast<uint8_t &>(x)); } -void read_little(std::istream& is, int16_t& x) { read_little(is, reinterpret_cast<uint16_t&>(x)); } -void read_little(std::istream& is, int32_t& x) { read_little(is, reinterpret_cast<uint32_t&>(x)); } -void read_little(std::istream& is, int64_t& x) { read_little(is, reinterpret_cast<uint64_t&>(x)); } - -void read_little(std::istream& is, float& x) -{ - uint32_t tmp; - read_little(is, tmp); - pun_int_to_float(x, tmp); -} - -void read_little(std::istream& is, double& x) -{ - uint64_t tmp; - read_little(is, tmp); - pun_int_to_double(x, tmp); -} - -//------------------------------------------------------------------------------ - -void read_big(std::istream& is, uint8_t& x) -{ - is.read(reinterpret_cast<char*>(&x), 1); -} - -void read_big(std::istream& is, uint16_t& x) -{ - uint8_t tmp[2]; - is.read(reinterpret_cast<char*>(tmp), 2); - x = uint16_t(tmp[1]) - | (uint16_t(tmp[0]) << 8); -} - -void read_big(std::istream& is, uint32_t& x) -{ - uint8_t tmp[4]; - is.read(reinterpret_cast<char*>(tmp), 4); - x = uint32_t(tmp[3]) - | (uint32_t(tmp[2]) << 8) - | (uint32_t(tmp[1]) << 16) - | (uint32_t(tmp[0]) << 24); -} - -void read_big(std::istream& is, uint64_t& x) -{ - uint8_t tmp[8]; - is.read(reinterpret_cast<char*>(tmp), 8); - x = uint64_t(tmp[7]) - | (uint64_t(tmp[6]) << 8) - | (uint64_t(tmp[5]) << 16) - | (uint64_t(tmp[4]) << 24) - | (uint64_t(tmp[3]) << 32) - | (uint64_t(tmp[2]) << 40) - | (uint64_t(tmp[1]) << 48) - | (uint64_t(tmp[0]) << 56); -} - -void read_big(std::istream& is, int8_t & x) { read_big(is, reinterpret_cast<uint8_t &>(x)); } -void read_big(std::istream& is, int16_t& x) { read_big(is, reinterpret_cast<uint16_t&>(x)); } -void read_big(std::istream& is, int32_t& x) { read_big(is, reinterpret_cast<uint32_t&>(x)); } -void read_big(std::istream& is, int64_t& x) { read_big(is, reinterpret_cast<uint64_t&>(x)); } - -void read_big(std::istream& is, float& x) -{ - uint32_t tmp; - read_big(is, tmp); - pun_int_to_float(x, tmp); -} - -void read_big(std::istream& is, double& x) -{ - uint64_t tmp; - read_big(is, tmp); - pun_int_to_double(x, tmp); -} - -//------------------------------------------------------------------------------ - -void write_little(std::ostream& os, uint8_t x) -{ - os.put(x); -} - -void write_little(std::ostream& os, uint16_t x) -{ - uint8_t tmp[2] { - uint8_t(x), - uint8_t(x >> 8)}; - os.write(reinterpret_cast<const char*>(tmp), 2); -} - -void write_little(std::ostream& os, uint32_t x) -{ - uint8_t tmp[4] { - uint8_t(x), - uint8_t(x >> 8), - uint8_t(x >> 16), - uint8_t(x >> 24)}; - os.write(reinterpret_cast<const char*>(tmp), 4); -} - -void write_little(std::ostream& os, uint64_t x) -{ - uint8_t tmp[8] { - uint8_t(x), - uint8_t(x >> 8), - uint8_t(x >> 16), - uint8_t(x >> 24), - uint8_t(x >> 32), - uint8_t(x >> 40), - uint8_t(x >> 48), - uint8_t(x >> 56)}; - os.write(reinterpret_cast<const char*>(tmp), 8); -} - -void write_little(std::ostream& os, int8_t x) { write_little(os, static_cast<uint8_t >(x)); } -void write_little(std::ostream& os, int16_t x) { write_little(os, static_cast<uint16_t>(x)); } -void write_little(std::ostream& os, int32_t x) { write_little(os, static_cast<uint32_t>(x)); } -void write_little(std::ostream& os, int64_t x) { write_little(os, static_cast<uint64_t>(x)); } - -void write_little(std::ostream& os, float x) -{ - write_little(os, pun_float_to_int(x)); -} - -void write_little(std::ostream& os, double x) -{ - write_little(os, pun_double_to_int(x)); -} - -//------------------------------------------------------------------------------ - -void write_big(std::ostream& os, uint8_t x) -{ - os.put(x); -} - -void write_big(std::ostream& os, uint16_t x) -{ - uint8_t tmp[2] { - uint8_t(x >> 8), - uint8_t(x)}; - os.write(reinterpret_cast<const char*>(tmp), 2); -} - -void write_big(std::ostream& os, uint32_t x) -{ - uint8_t tmp[4] { - uint8_t(x >> 24), - uint8_t(x >> 16), - uint8_t(x >> 8), - uint8_t(x)}; - os.write(reinterpret_cast<const char*>(tmp), 4); -} - -void write_big(std::ostream& os, uint64_t x) -{ - uint8_t tmp[8] { - uint8_t(x >> 56), - uint8_t(x >> 48), - uint8_t(x >> 40), - uint8_t(x >> 32), - uint8_t(x >> 24), - uint8_t(x >> 16), - uint8_t(x >> 8), - uint8_t(x)}; - os.write(reinterpret_cast<const char*>(tmp), 8); -} - -void write_big(std::ostream& os, int8_t x) { write_big(os, static_cast<uint8_t >(x)); } -void write_big(std::ostream& os, int16_t x) { write_big(os, static_cast<uint16_t>(x)); } -void write_big(std::ostream& os, int32_t x) { write_big(os, static_cast<uint32_t>(x)); } -void write_big(std::ostream& os, int64_t x) { write_big(os, static_cast<uint64_t>(x)); } - -void write_big(std::ostream& os, float x) -{ - write_big(os, pun_float_to_int(x)); -} - -void write_big(std::ostream& os, double x) -{ - write_big(os, pun_double_to_int(x)); -} - -} |