Add endian conversion functions
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84
Makefile.am
84
Makefile.am
@ -7,49 +7,51 @@ AM_LDFLAGS = $(BOOST_LDFLAGS) $(BOOST_FILESYSTEM_LIB) $(COMMON_LDFLAGS)
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SUBDIRS = test
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SUBDIRS = test
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UTIL_INCLUDE = \
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UTIL_INCLUDE = \
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annotations.hpp \
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annotations.hpp \
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backtrace.hpp \
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backtrace.hpp \
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debug.hpp \
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debug.hpp \
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enable_if.hpp \
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enable_if.hpp \
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except.hpp \
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endian.hpp \
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fixed.hpp \
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except.hpp \
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float.hpp \
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fixed.hpp \
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io.hpp \
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float.hpp \
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ip.hpp \
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io.hpp \
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json.hpp \
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ip.hpp \
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maths.hpp \
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json.hpp \
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matrix.hpp \
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maths.hpp \
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nocopy.hpp \
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matrix.hpp \
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point.hpp \
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nocopy.hpp \
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pool.hpp \
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point.hpp \
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range.hpp \
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pool.hpp \
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region.hpp \
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range.hpp \
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signal.hpp \
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region.hpp \
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stream.hpp \
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signal.hpp \
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string.hpp \
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stream.hpp \
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types.hpp \
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string.hpp \
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vector.hpp \
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types.hpp \
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vector.hpp \
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version.hpp
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version.hpp
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UTIL_FILES = \
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UTIL_FILES = \
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debug.cpp \
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debug.cpp \
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except.cpp \
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endian.cpp \
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fixed.cpp \
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except.cpp \
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float.cpp \
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fixed.cpp \
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io.cpp \
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float.cpp \
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ip.cpp \
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io.cpp \
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json.cpp \
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ip.cpp \
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maths.cpp \
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json.cpp \
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matrix.cpp \
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maths.cpp \
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point.cpp \
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matrix.cpp \
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pool.cpp \
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point.cpp \
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range.cpp \
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pool.cpp \
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region.cpp \
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range.cpp \
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signal.cpp \
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region.cpp \
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stream.cpp \
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signal.cpp \
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string.cpp \
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stream.cpp \
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types.cpp \
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string.cpp \
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vector.cpp \
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types.cpp \
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vector.cpp \
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version.cpp
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version.cpp
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20
endian.cpp
Normal file
20
endian.cpp
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@ -0,0 +1,20 @@
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/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2010 Danny Robson <danny@blubinc.net>
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*/
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#include "endian.hpp"
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endian.hpp
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endian.hpp
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@ -0,0 +1,76 @@
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/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2010 Danny Robson <danny@blubinc.net>
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*/
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#ifndef __UTIL_ENDIAN_HPP
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#define __UTIL_ENDIAN_HPP
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#include <cstdint>
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enum {
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ENDIAN_BIG,
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ENDIAN_LITTLE
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};
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constexpr uint8_t hton (uint8_t h) { return h; }
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constexpr uint8_t ntoh (uint8_t n) { return n; }
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constexpr uint16_t hton (uint16_t h) {
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return ((h & 0xFF00) >> 8) |
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((h & 0x00FF) << 8);
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}
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constexpr uint16_t ntoh (uint16_t n)
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{ return hton (n); }
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constexpr uint32_t hton (uint32_t h) {
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return __builtin_bswap32 (h);
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//return (h & 0xFF000000U) >> 24 |
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// (h & 0x00FF0000U) >> 8 |
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// (h & 0x0000FF00U) << 8 |
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// (h & 0x000000FFU) << 24;
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}
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constexpr uint32_t ntoh (uint32_t n)
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{ return hton (n); }
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constexpr uint64_t hton (uint64_t h) {
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return __builtin_bswap64 (h);
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// return (h & 0xFF00000000000000UL) >> 56 |
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// (h & 0x00FF000000000000UL) >> 40 |
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// (h & 0x0000FF0000000000UL) >> 24 |
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// (h & 0x000000FF00000000UL) >> 8 |
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// (h & 0x00000000FF000000UL) << 8 |
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// (h & 0x0000000000FF0000UL) << 24 |
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// (h & 0x000000000000FF00UL) << 40 |
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// (h & 0x00000000000000FFUL) << 56;
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}
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constexpr uint64_t ntoh (uint64_t n)
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{ return hton (n); }
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#endif
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