/** * Copyright 2013-2016 Nest Labs Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file * This file defines C++ functions for safely performing simple, * memory-mapped accesses, potentially to unaligned, aligned, and * unaligned memory locations with byte reordering, specifically * for big endian target systems. */ #ifndef NLIO_BYTEORDER_BIG_HPP #define NLIO_BYTEORDER_BIG_HPP #include #include namespace nl { namespace IO { namespace BigEndian { /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 8-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p A pointer address, potentially unaligned, to read * the 8-bit big endian byte ordered value from. * * @return The 8-bit value at the specified pointer address. */ static inline uint8_t Get8(const void *p) { return IO::Get8(p); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 16-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p A pointer address, potentially unaligned, to read * the 16-bit big endian byte ordered value from. * * @return The 16-bit value at the specified pointer address. */ static inline uint16_t Get16(const void *p) { return ByteOrder::Swap16BigToHost(IO::Get16(p)); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 32-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p A pointer address, potentially unaligned, to read * the 32-bit big endian byte ordered value from. * * @return The 32-bit value at the specified pointer address. */ static inline uint32_t Get32(const void *p) { return ByteOrder::Swap32BigToHost(IO::Get32(p)); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 64-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p A pointer address, potentially unaligned, to read * the 64-bit big endian byte ordered value from. * * @return The 64-bit value at the specified pointer address. */ static inline uint64_t Get64(const void *p) { return ByteOrder::Swap64BigToHost(IO::Get64(p)); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 8-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A pointer address, potentially unaligned, to write * the target system byte ordered 8-bit value to in big * endian byte ordering. * * @param[in] v The 8-bit value to write. * */ static inline void Put8(void *p, uint8_t v) { IO::Put8(p, v); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 16-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A pointer address, potentially unaligned, to write * the target system byte ordered 16-bit value to in big * endian byte ordering. * * @param[in] v The 16-bit value to write. * */ static inline void Put16(void *p, uint16_t v) { IO::Put16(p, ByteOrder::Swap16HostToBig(v)); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 32-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A pointer address, potentially unaligned, to write * the target system byte ordered 32-bit value to in big * endian byte ordering. * * @param[in] v The 32-bit value to write. * */ static inline void Put32(void *p, uint32_t v) { IO::Put32(p, ByteOrder::Swap32HostToBig(v)); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 64-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A pointer address, potentially unaligned, to write * the target system byte ordered 64-bit value to in big * endian byte ordering. * * @param[in] v The 64-bit value to write. * */ static inline void Put64(void *p, uint64_t v) { IO::Put64(p, ByteOrder::Swap64HostToBig(v)); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 8-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 8-bits (1 byte). * * @param[inout] p A reference to a pointer address, potentially * unaligned, to read the 8-bit big endian byte * ordered value from and to then increment by 8- * bits (1 byte). * * @return The 8-bit value at the specified pointer address. */ static inline uint8_t Read8(const void *&p) { return IO::Read8(p); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 16-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 16-bits (2 bytes). * * @param[inout] p A reference to a pointer address, potentially * unaligned, to read the 16-bit big endian byte * ordered value from and to then increment by 16- * bits (2 bytes). * * @return The 16-bit value at the specified pointer address. */ static inline uint16_t Read16(const void *&p) { return ByteOrder::Swap16BigToHost(IO::Read16(p)); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 32-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 32-bits (4 bytes). * * @param[inout] p A reference to a pointer address, potentially * unaligned, to read the 32-bit big endian byte * ordered value from and to then increment by 32- * bits (4 bytes). * * @return The 32-bit value at the specified pointer address. */ static inline uint32_t Read32(const void *&p) { return ByteOrder::Swap32BigToHost(IO::Read32(p)); } /** * Perform a, potentially unaligned, memory read of the big endian * byte ordered 64-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 64-bits (8 bytes). * * @param[inout] p A reference to a pointer address, potentially * unaligned, to read the 64-bit big endian byte * ordered value from and to then increment by 64- * bits (8 bytes). * * @return The 64-bit value at the specified pointer address. */ static inline uint64_t Read64(const void *&p) { return ByteOrder::Swap64BigToHost(IO::Read64(p)); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 8-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A reference to a pointer address, potentially * unaligned, to write the target system byte * ordered 8-bit value to in big endian byte * ordering and to then increment by 8-bits (1 * byte). * * @param[in] v The 8-bit value to write. * */ static inline void Write8(void *&p, uint8_t v) { IO::Write8(p, v); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 16-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A reference to a pointer address, potentially * unaligned, to write the target system byte * ordered 16-bit value to in big endian byte * ordering and to then increment by 16-bits (2 * bytes). * * @param[in] v The 16-bit value to write. * */ static inline void Write16(void *&p, uint16_t v) { IO::Write16(p, ByteOrder::Swap16HostToBig(v)); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 32-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A reference to a pointer address, potentially * unaligned, to write the target system byte * ordered 32-bit value to in big endian byte * ordering and to then increment by 16-bits (4 * bytes). * * @param[in] v The 32-bit value to write. * */ static inline void Write32(void *&p, uint32_t v) { IO::Write32(p, ByteOrder::Swap32HostToBig(v)); } /** * Perform a, potentially unaligned, memory write of the target system * byte ordered 64-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p A reference to a pointer address, potentially * unaligned, to write the target system byte * ordered 64-bit value to in big endian byte * ordering and to then increment by 64-bits (8 * bytes). * * @param[in] v The 64-bit value to write. * */ static inline void Write64(void *&p, uint64_t v) { IO::Write64(p, ByteOrder::Swap64HostToBig(v)); } /** * Perform an aligned memory read of the big endian * byte ordered 8-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An aligned pointer address to read * the 8-bit big endian byte ordered value from. * * @return The 8-bit value at the specified pointer address. */ static inline uint8_t GetAligned8(const void *p) { return IO::GetAligned8(p); } /** * Perform an aligned memory read of the big endian * byte ordered 16-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An aligned pointer address to read * the 16-bit big endian byte ordered value from. * * @return The 16-bit value at the specified pointer address. */ static inline uint16_t GetAligned16(const void *p) { return ByteOrder::Swap16BigToHost(IO::GetAligned16(p)); } /** * Perform an aligned memory read of the big endian * byte ordered 32-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An aligned pointer address to read * the 32-bit big endian byte ordered value from. * * @return The 32-bit value at the specified pointer address. */ static inline uint32_t GetAligned32(const void *p) { return ByteOrder::Swap32BigToHost(IO::GetAligned32(p)); } /** * Perform an aligned memory read of the big endian * byte ordered 64-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An aligned pointer address to read * the 64-bit big endian byte ordered value from. * * @return The 64-bit value at the specified pointer address. */ static inline uint64_t GetAligned64(const void *p) { return ByteOrder::Swap64BigToHost(IO::GetAligned64(p)); } /** * Perform an aligned memory write of the target system * byte ordered 8-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An aligned pointer address to write * the target system byte ordered 8-bit value to in big * endian byte ordering. * * @param[in] v The 8-bit value to write. * */ static inline void PutAligned8(void *p, uint8_t v) { IO::PutAligned8(p, v); } /** * Perform an aligned memory write of the target system * byte ordered 16-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An aligned pointer address to write * the target system byte ordered 16-bit value to in big * endian byte ordering. * * @param[in] v The 16-bit value to write. * */ static inline void PutAligned16(void *p, uint16_t v) { IO::PutAligned16(p, ByteOrder::Swap16HostToBig(v)); } /** * Perform an aligned memory write of the target system * byte ordered 32-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An aligned pointer address to write * the target system byte ordered 32-bit value to in big * endian byte ordering. * * @param[in] v The 32-bit value to write. * */ static inline void PutAligned32(void *p, uint32_t v) { IO::PutAligned32(p, ByteOrder::Swap32HostToBig(v)); } /** * Perform an aligned memory write of the target system * byte ordered 64-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An aligned pointer address to write * the target system byte ordered 64-bit value to in big * endian byte ordering. * * @param[in] v The 64-bit value to write. * */ static inline void PutAligned64(void *p, uint64_t v) { IO::PutAligned64(p, ByteOrder::Swap64HostToBig(v)); } /** * Perform an aligned memory read of the big endian * byte ordered 8-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 8-bits (1 byte). * * @param[inout] p A reference to an aligned pointer address * to read the 8-bit big endian byte * ordered value from and to then increment by 8- * bits (1 byte). * * @return The 8-bit value at the specified pointer address. */ static inline uint8_t ReadAligned8(const void *&p) { return IO::ReadAligned8(p); } /** * Perform an aligned memory read of the big endian * byte ordered 16-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 16-bits (2 bytes). * * @param[inout] p A reference to an aligned pointer address * to read the 16-bit big endian byte * ordered value from and to then increment by 16- * bits (2 bytes). * * @return The 16-bit value at the specified pointer address. */ static inline uint16_t ReadAligned16(const void *&p) { return ByteOrder::Swap16BigToHost(IO::ReadAligned16(p)); } /** * Perform an aligned memory read of the big endian * byte ordered 32-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 32-bits (4 bytes). * * @param[inout] p A reference to an aligned pointer address * to read the 32-bit big endian byte * ordered value from and to then increment by 32- * bits (4 bytes). * * @return The 32-bit value at the specified pointer address. */ static inline uint32_t ReadAligned32(const void *&p) { return ByteOrder::Swap32BigToHost(IO::ReadAligned32(p)); } /** * Perform an aligned memory read of the big endian * byte ordered 64-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 64-bits (8 bytes). * * @param[inout] p A reference to an aligned pointer address * to read the 64-bit big endian byte * ordered value from and to then increment by 64- * bits (8 bytes). * * @return The 64-bit value at the specified pointer address. */ static inline uint64_t ReadAligned64(const void *&p) { return ByteOrder::Swap64BigToHost(IO::ReadAligned64(p)); } /** * Perform an aligned memory write of the target system * byte ordered 8-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an aligned pointer address * to write the target system byte * ordered 8-bit value to in big endian byte * ordering and to then increment by 8-bits (1 * byte). * * @param[in] v The 8-bit value to write. * */ static inline void WriteAligned8(void *&p, uint8_t v) { IO::WriteAligned8(p, v); } /** * Perform an aligned memory write of the target system * byte ordered 16-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an aligned pointer address * to write the target system byte * ordered 16-bit value to in big endian byte * ordering and to then increment by 16-bits (2 * bytes). * * @param[in] v The 16-bit value to write. * */ static inline void WriteAligned16(void *&p, uint16_t v) { IO::WriteAligned16(p, ByteOrder::Swap16HostToBig(v)); } /** * Perform an aligned memory write of the target system * byte ordered 32-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an aligned pointer address * to write the target system byte * ordered 32-bit value to in big endian byte * ordering and to then increment by 16-bits (4 * bytes). * * @param[in] v The 32-bit value to write. * */ static inline void WriteAligned32(void *&p, uint32_t v) { IO::WriteAligned32(p, ByteOrder::Swap32HostToBig(v)); } /** * Perform an aligned memory write of the target system * byte ordered 64-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an aligned pointer address * to write the target system byte * ordered 64-bit value to in big endian byte * ordering and to then increment by 64-bits (8 * bytes). * * @param[in] v The 64-bit value to write. * */ static inline void WriteAligned64(void *&p, uint64_t v) { IO::WriteAligned64(p, ByteOrder::Swap64HostToBig(v)); } /** * Perform an unaligned memory read of the big endian * byte ordered 8-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An unaligned pointer address to read * the 8-bit big endian byte ordered value from. * * @return The 8-bit value at the specified pointer address. */ static inline uint8_t GetUnaligned8(const void *p) { return IO::GetUnaligned8(p); } /** * Perform an unaligned memory read of the big endian * byte ordered 16-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An unaligned pointer address to read * the 16-bit big endian byte ordered value from. * * @return The 16-bit value at the specified pointer address. */ static inline uint16_t GetUnaligned16(const void *p) { return ByteOrder::Swap16BigToHost(IO::GetUnaligned16(p)); } /** * Perform an unaligned memory read of the big endian * byte ordered 32-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An unaligned pointer address to read * the 32-bit big endian byte ordered value from. * * @return The 32-bit value at the specified pointer address. */ static inline uint32_t GetUnaligned32(const void *p) { return ByteOrder::Swap32BigToHost(IO::GetUnaligned32(p)); } /** * Perform an unaligned memory read of the big endian * byte ordered 64-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in target system byte ordering. * * @param[in] p An unaligned pointer address to read * the 64-bit big endian byte ordered value from. * * @return The 64-bit value at the specified pointer address. */ static inline uint64_t GetUnaligned64(const void *p) { return ByteOrder::Swap64BigToHost(IO::GetUnaligned64(p)); } /** * Perform an unaligned memory write of the target system * byte ordered 8-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An unaligned pointer address to write * the target system byte ordered 8-bit value to in big * endian byte ordering. * * @param[in] v The 8-bit value to write. * */ static inline void PutUnaligned8(void *p, uint8_t v) { IO::PutUnaligned8(p, v); } /** * Perform an unaligned memory write of the target system * byte ordered 16-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An unaligned pointer address to write * the target system byte ordered 16-bit value to in big * endian byte ordering. * * @param[in] v The 16-bit value to write. * */ static inline void PutUnaligned16(void *p, uint16_t v) { IO::PutUnaligned16(p, ByteOrder::Swap16HostToBig(v)); } /** * Perform an unaligned memory write of the target system * byte ordered 32-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An unaligned pointer address to write * the target system byte ordered 32-bit value to in big * endian byte ordering. * * @param[in] v The 32-bit value to write. * */ static inline void PutUnaligned32(void *p, uint32_t v) { IO::PutUnaligned32(p, ByteOrder::Swap32HostToBig(v)); } /** * Perform an unaligned memory write of the target system * byte ordered 64-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[in] p An unaligned pointer address to write * the target system byte ordered 64-bit value to in big * endian byte ordering. * * @param[in] v The 64-bit value to write. * */ static inline void PutUnaligned64(void *p, uint64_t v) { IO::PutUnaligned64(p, ByteOrder::Swap64HostToBig(v)); } /** * Perform an unaligned memory read of the big endian * byte ordered 8-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 8-bits (1 byte). * * @param[inout] p A reference to an unaligned pointer address * to read the 8-bit big endian byte * ordered value from and to then increment by 8- * bits (1 byte). * * @return The 8-bit value at the specified pointer address. */ static inline uint8_t ReadUnaligned8(const void *&p) { return IO::ReadUnaligned8(p); } /** * Perform an unaligned memory read of the big endian * byte ordered 16-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 16-bits (2 bytes). * * @param[inout] p A reference to an unaligned pointer address * to read the 16-bit big endian byte * ordered value from and to then increment by 16- * bits (2 bytes). * * @return The 16-bit value at the specified pointer address. */ static inline uint16_t ReadUnaligned16(const void *&p) { return ByteOrder::Swap16BigToHost(IO::ReadUnaligned16(p)); } /** * Perform an unaligned memory read of the big endian * byte ordered 32-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 32-bits (4 bytes). * * @param[inout] p A reference to an unaligned pointer address * to read the 32-bit big endian byte * ordered value from and to then increment by 32- * bits (4 bytes). * * @return The 32-bit value at the specified pointer address. */ static inline uint32_t ReadUnaligned32(const void *&p) { return ByteOrder::Swap32BigToHost(IO::ReadUnaligned32(p)); } /** * Perform an unaligned memory read of the big endian * byte ordered 64-bit value from the specified pointer address, * perform byte reordering, as necessary, for the target system to put * the value in target system byte ordering, and increment the pointer * by 64-bits (8 bytes). * * @param[inout] p A reference to an unaligned pointer address * to read the 64-bit big endian byte * ordered value from and to then increment by 64- * bits (8 bytes). * * @return The 64-bit value at the specified pointer address. */ static inline uint64_t ReadUnaligned64(const void *&p) { return ByteOrder::Swap64BigToHost(IO::ReadUnaligned64(p)); } /** * Perform an unaligned memory write of the target system * byte ordered 8-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an unaligned pointer address * to write the target system byte * ordered 8-bit value to in big endian byte * ordering and to then increment by 8-bits (1 * byte). * * @param[in] v The 8-bit value to write. * */ static inline void WriteUnaligned8(void *&p, uint8_t v) { IO::WriteUnaligned8(p, v); } /** * Perform an unaligned memory write of the target system * byte ordered 16-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an unaligned pointer address * to write the target system byte * ordered 16-bit value to in big endian byte * ordering and to then increment by 16-bits (2 * bytes). * * @param[in] v The 16-bit value to write. * */ static inline void WriteUnaligned16(void *&p, uint16_t v) { IO::WriteUnaligned16(p, ByteOrder::Swap16HostToBig(v)); } /** * Perform an unaligned memory write of the target system * byte ordered 32-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an unaligned pointer address * to write the target system byte * ordered 32-bit value to in big endian byte * ordering and to then increment by 16-bits (4 * bytes). * * @param[in] v The 32-bit value to write. * */ static inline void WriteUnaligned32(void *&p, uint32_t v) { IO::WriteUnaligned32(p, ByteOrder::Swap32HostToBig(v)); } /** * Perform an unaligned memory write of the target system * byte ordered 64-bit value to the specified pointer address, * perform byte reordering, as necessary, for the target system to * put the value in big endian byte ordering. * * @param[inout] p A reference to an unaligned pointer address * to write the target system byte * ordered 64-bit value to in big endian byte * ordering and to then increment by 64-bits (8 * bytes). * * @param[in] v The 64-bit value to write. * */ static inline void WriteUnaligned64(void *&p, uint64_t v) { IO::WriteUnaligned64(p, ByteOrder::Swap64HostToBig(v)); } } // namespace BigEndian } // namespace IO } // namespace nl #endif // NLIO_BYTEORDER_BIG_HPP