functions.hpp

#ifndef H_EXTENSIONS_CUTEHMI_MODBUS_2_INCLUDE_CUTEHMI_MODBUS_INTERNAL_FUNCTIONS_HPP
#define H_EXTENSIONS_CUTEHMI_MODBUS_2_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 © 2019-2020, Michał Policht <michal@policht.pl>, Yuri Chornoivan <yurchor@ukr.net>. All rights reserved.
//(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.
//(c)C: CuteHMI 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.
//(c)C: You should have received a copy of the GNU Lesser General Public License along with CuteHMI.  If not, see <https://www.gnu.org/licenses/>.