cpp-utilities/conversion/binaryconversionprivate.h

#ifndef CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL
# error "Do not include binaryconversionprivate.h directly."
#else

#include "./types.h"

#include "../global.h"

/*!
 * \brief Returns a 16-bit signed integer converted from two bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline int16 toInt16(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<int16>(value[0]) << 8 & 0xFF00)
            | (static_cast<int16>(value[1])      & 0x00FF);
#else
    return    (static_cast<int16>(value[1]) << 8 & 0xFF00)
            | (static_cast<int16>(value[0])      & 0x00FF);
#endif
}

/*!
 * \brief Returns a 16-bit unsigned integer converted from two bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline uint16 toUInt16(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<uint16>(value[0]) << 8 & 0xFF00)
            | (static_cast<uint16>(value[1])      & 0x00FF);
#else
    return    (static_cast<uint16>(value[1]) << 8 & 0xFF00)
            | (static_cast<uint16>(value[0])      & 0x00FF);
#endif
}

/*!
 * \brief Returns a 32-bit signed integer converted from four bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline int32 toInt32(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<int32>(value[0]) << 24 & 0xFF000000)
            | (static_cast<int32>(value[1]) << 16 & 0x00FF0000)
            | (static_cast<int32>(value[2]) <<  8 & 0x0000FF00)
            | (static_cast<int32>(value[3])       & 0x000000FF);
#else
    return    (static_cast<int32>(value[3]) << 24 & 0xFF000000)
            | (static_cast<int32>(value[2]) << 16 & 0x00FF0000)
            | (static_cast<int32>(value[1]) <<  8 & 0x0000FF00)
            | (static_cast<int32>(value[0])       & 0x000000FF);
#endif
}

/*!
 * \brief Returns a 32-bit unsigned integer converted from three bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline uint32 toUInt24(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<uint32>(value[0]) << 16 & 0x00FF0000)
            | (static_cast<uint32>(value[1]) <<  8 & 0x0000FF00)
            | (static_cast<uint32>(value[2])       & 0x000000FF);
#else
    return    (static_cast<uint32>(value[2]) << 16 & 0x00FF0000)
            | (static_cast<uint32>(value[1]) <<  8 & 0x0000FF00)
            | (static_cast<uint32>(value[0])       & 0x000000FF);
#endif
}

/*!
 * \brief Returns a 32-bit unsigned integer converted from four bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline uint32 toUInt32(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<uint32>(value[0]) << 24 & 0xFF000000)
            | (static_cast<uint32>(value[1]) << 16 & 0x00FF0000)
            | (static_cast<uint32>(value[2]) <<  8 & 0x0000FF00)
            | (static_cast<uint32>(value[3])       & 0x000000FF);
#else
    return    (static_cast<uint32>(value[3]) << 24 & 0xFF000000)
            | (static_cast<uint32>(value[2]) << 16 & 0x00FF0000)
            | (static_cast<uint32>(value[1]) <<  8 & 0x0000FF00)
            | (static_cast<uint32>(value[0])       & 0x000000FF);
#endif
}

/*!
 * \brief Returns a 64-bit signed integer converted from eight bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline int64 toInt64(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<int64>(value[0]) << 56 & 0xFF00000000000000)
            | (static_cast<int64>(value[1]) << 48 & 0x00FF000000000000)
            | (static_cast<int64>(value[2]) << 40 & 0x0000FF0000000000)
            | (static_cast<int64>(value[3]) << 32 & 0x000000FF00000000)
            | (static_cast<int64>(value[4]) << 24 & 0x00000000FF000000)
            | (static_cast<int64>(value[5]) << 16 & 0x0000000000FF0000)
            | (static_cast<int64>(value[6]) <<  8 & 0x000000000000FF00)
            | (static_cast<int64>(value[7])       & 0x00000000000000FF);
#else
    return    (static_cast<int64>(value[7]) << 56 & 0xFF00000000000000)
            | (static_cast<int64>(value[6]) << 48 & 0x00FF000000000000)
            | (static_cast<int64>(value[5]) << 40 & 0x0000FF0000000000)
            | (static_cast<int64>(value[4]) << 32 & 0x000000FF00000000)
            | (static_cast<int64>(value[3]) << 24 & 0x00000000FF000000)
            | (static_cast<int64>(value[2]) << 16 & 0x0000000000FF0000)
            | (static_cast<int64>(value[1]) <<  8 & 0x000000000000FF00)
            | (static_cast<int64>(value[0])       & 0x00000000000000FF);
#endif
}

/*!
 * \brief Returns a 64-bit unsigned integer converted from eight bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline uint64 toUInt64(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    return    (static_cast<uint64>(value[0]) << 56 & 0xFF00000000000000)
            | (static_cast<uint64>(value[1]) << 48 & 0x00FF000000000000)
            | (static_cast<uint64>(value[2]) << 40 & 0x0000FF0000000000)
            | (static_cast<uint64>(value[3]) << 32 & 0x000000FF00000000)
            | (static_cast<uint64>(value[4]) << 24 & 0x00000000FF000000)
            | (static_cast<uint64>(value[5]) << 16 & 0x0000000000FF0000)
            | (static_cast<uint64>(value[6]) <<  8 & 0x000000000000FF00)
            | (static_cast<uint64>(value[7])       & 0x00000000000000FF);
#else
    return    (static_cast<uint64>(value[7]) << 56 & 0xFF00000000000000)
            | (static_cast<uint64>(value[6]) << 48 & 0x00FF000000000000)
            | (static_cast<uint64>(value[5]) << 40 & 0x0000FF0000000000)
            | (static_cast<uint64>(value[4]) << 32 & 0x000000FF00000000)
            | (static_cast<uint64>(value[3]) << 24 & 0x00000000FF000000)
            | (static_cast<uint64>(value[2]) << 16 & 0x0000000000FF0000)
            | (static_cast<uint64>(value[1]) <<  8 & 0x000000000000FF00)
            | (static_cast<uint64>(value[0])       & 0x00000000000000FF);
#endif
}

/*!
 * \brief Returns a 32-bit floating point number converted from four bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline float32 toFloat32(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    int32 val = toInt32(value);
    char *c = reinterpret_cast<char *>(&val);
    return *reinterpret_cast<float32 *>(c);
#else
    int32 val = toInt32(value);
    char *c = reinterpret_cast<char *>(&val);
    return *reinterpret_cast<float32 *>(c);
#endif
}

/*!
 * \brief Returns a 64-bit floating point number converted from eight bytes at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline float64 toFloat64(const char *value)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    int64 val = toInt64(value);
    char *c = reinterpret_cast<char *>(&val);
    return *reinterpret_cast<float64*>(c);
#else
    int64 val = toInt64(value);
    char *c = reinterpret_cast<char *>(&val);
    return *reinterpret_cast<float64 *>(c);
#endif
}

/*!
 * \brief Stores the specified 16-bit signed integer value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(int16 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 8) & 0xFF);
    outputbuffer[1] = static_cast<char>((value     ) & 0xFF);
#else
    outputbuffer[1] = static_cast<char>((value >> 8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value     ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 16-bit unsigned integer value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(uint16 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 8) & 0xFF);
    outputbuffer[1] = static_cast<char>((value     ) & 0xFF);
#else
    outputbuffer[1] = static_cast<char>((value >> 8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value     ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 24-bit unsigned integer value at a specified position in a char array.
 * \remarks Ignores the most significant byte.
 */
CPP_UTILITIES_EXPORT inline void getBytes24(uint32 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[2] = static_cast<char>((value      ) & 0xFF);
#else
    outputbuffer[2] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value      ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 32-bit signed integer value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(int32 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[3] = static_cast<char>((value      ) & 0xFF);
#else
    outputbuffer[3] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value      ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 32-bit signed integer value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(uint32 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[3] = static_cast<char>((value      ) & 0xFF);
#else
    outputbuffer[3] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value      ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 64-bit signed integer value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(int64 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 56) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >> 48) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >> 40) & 0xFF);
    outputbuffer[3] = static_cast<char>((value >> 32) & 0xFF);
    outputbuffer[4] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[5] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[6] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[7] = static_cast<char>((value      ) & 0xFF);
#else
    outputbuffer[7] = static_cast<char>((value >> 56) & 0xFF);
    outputbuffer[6] = static_cast<char>((value >> 48) & 0xFF);
    outputbuffer[5] = static_cast<char>((value >> 40) & 0xFF);
    outputbuffer[4] = static_cast<char>((value >> 32) & 0xFF);
    outputbuffer[3] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value      ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 64-bit unsigned integer value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(uint64 value, char *outputbuffer)
{
#if CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL == 0
    outputbuffer[0] = static_cast<char>((value >> 56) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >> 48) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >> 40) & 0xFF);
    outputbuffer[3] = static_cast<char>((value >> 32) & 0xFF);
    outputbuffer[4] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[5] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[6] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[7] = static_cast<char>((value      ) & 0xFF);
#else
    outputbuffer[7] = static_cast<char>((value >> 56) & 0xFF);
    outputbuffer[6] = static_cast<char>((value >> 48) & 0xFF);
    outputbuffer[5] = static_cast<char>((value >> 40) & 0xFF);
    outputbuffer[4] = static_cast<char>((value >> 32) & 0xFF);
    outputbuffer[3] = static_cast<char>((value >> 24) & 0xFF);
    outputbuffer[2] = static_cast<char>((value >> 16) & 0xFF);
    outputbuffer[1] = static_cast<char>((value >>  8) & 0xFF);
    outputbuffer[0] = static_cast<char>((value      ) & 0xFF);
#endif
}

/*!
 * \brief Stores the specified 32-bit floating point value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(float32 value, char *outputbuffer)
{
    char *c = reinterpret_cast<char *>(&value);
    int32 i = *reinterpret_cast<int32 *>(c);
    getBytes(i, outputbuffer);
}

/*!
 * \brief Stores the specified 64-bit floating point value at a specified position in a char array.
 */
CPP_UTILITIES_EXPORT inline void getBytes(float64 value, char *outputbuffer)
{
    char *c = reinterpret_cast<char *>(&value);
    int64 i = *reinterpret_cast<int64 *>(c);
    getBytes(i, outputbuffer);
}

#endif // CONVERSION_UTILITIES_BINARY_CONVERSION_INTERNAL