functions.hpp

#ifndef H_EXTENSIONS_CUTEHMI_MODBUS_4_INCLUDE_CUTEHMI_MODBUS_INTERNAL_FUNCTIONS_HPP
#define H_EXTENSIONS_CUTEHMI_MODBUS_4_INCLUDE_CUTEHMI_MODBUS_INTERNAL_FUNCTIONS_HPP
 
#include "common.hpp"
 
#include <QtEndian>
 
namespace cutehmi {
namespace modbus {
namespace internal {
 
template <typename T>
T toBigEndian(T src)
{
    // Will use Qt endian functions, but need to assert that uchar is 8 bit wide. Qt implementation seems to be unaware that
    // sizeof(char) == 1 byte == not necessarily 8 bits.
    static_assert(std::numeric_limits<uchar>::digits == 8, "uchar must be 8 bit wide");
 
    return qToBigEndian(src);
}
 
template <typename T>
T fromBigEndian(T src)
{
    // Will use Qt endian functions, but need to assert that uchar is 8 bit wide. Qt implementation seems to be unaware that
    // sizeof(char) == 1 byte == not necessarily 8 bits.
    static_assert(std::numeric_limits<uchar>::digits == 8, "uchar must be 8 bit wide");
 
    return qFromBigEndian(src);
}
 
template <typename T>
T toLittleEndian(T src)
{
    // Will use Qt endian functions, but need to assert that uchar is 8 bit wide. Qt implementation seems to be unaware that
    // sizeof(char) == 1 byte == not necessarily 8 bits.
    static_assert(std::numeric_limits<uchar>::digits == 8, "uchar must be 8 bit wide");
 
    return qToLittleEndian(src);
}
 
template <typename T>
T fromLittleEndian(T src)
{
    // Will use Qt endian functions, but need to assert that uchar is 8 bit wide. Qt implementation seems to be unaware that
    // sizeof(char) == 1 byte == not necessarily 8 bits.
    static_assert(std::numeric_limits<uchar>::digits == 8, "uchar must be 8 bit wide");
 
    return qFromLittleEndian(src);
}
 
quint16 CUTEHMI_MODBUS_PRIVATE intToUint16(int value);
 
quint16 CUTEHMI_MODBUS_PRIVATE int16ToUint16(qint16 value);
 
qint16 CUTEHMI_MODBUS_PRIVATE int16FromUint16(quint16 value);
 
}
}
}
 
#endif
 
//(c)C: Copyright © 2022, Michał Policht <michal@policht.pl>. All rights reserved.
//(c)C: SPDX-License-Identifier: LGPL-3.0-or-later OR MIT
//(c)C: This file is a part of CuteHMI.
//(c)C: CuteHMI 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.
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//(c)C: Additionally, this file is licensed under terms of MIT license as expressed below.
//(c)C: Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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