decimal/single/double il2cpp

#if !NET_4_0
// System.Decimal
typedef struct
{
    //Note that we are not taking care of endianess.
    union
    {
        uint32_t ss32;
        struct signscale
        {
            unsigned int reserved1 : 16;
            unsigned int scale : 8;
            unsigned int reserved2 : 7;
            unsigned int sign : 1;
        } signscale;
    } u;
    uint32_t hi32;
    uint32_t lo32;
    uint32_t mid32;
} il2cpp_decimal_repr;
#else

typedef struct Il2CppDecimal
{
    // Decimal.cs treats the first two shorts as one long
    // And they seriable the data so we need to little endian
    // seriliazation
    // The wReserved overlaps with Variant's vt member
#if IL2CPP_BYTE_ORDER == IL2CPP_BIG_ENDIAN
    union
    {
        struct
        {
            uint8_t sign;
            uint8_t scale;
        } u;
        uint16_t signscale;
    } u;
    uint16_t reserved;
#else
    uint16_t reserved;
    union
    {
        struct
        {
            uint8_t scale;
            uint8_t sign;
        } u;
        uint16_t signscale;
    } u;
#endif
    uint32_t Hi32;
    union
    {
        struct
        {
            uint32_t Lo32;
            uint32_t Mid32;
        } v;
        uint64_t Lo64;
    } v;
} Il2CppDecimal;

// Structure to access an encoded double floating point
typedef struct Il2CppDouble
{
#if IL2CPP_BYTE_ORDER == IL2CPP_BIG_ENDIAN
    uint32_t sign : 1;
    uint32_t exp : 11;
    uint32_t mantHi : 20;
    uint32_t mantLo : 32;
#else // BIGENDIAN
    uint32_t mantLo : 32;
    uint32_t mantHi : 20;
    uint32_t exp : 11;
    uint32_t sign : 1;
#endif
} Il2CppDouble;

typedef union Il2CppDouble_double
{
    Il2CppDouble s;
    double d;
} Il2CppDouble_double;

typedef enum Il2CppDecimalCompareResult
{
    IL2CPP_DECIMAL_CMP_LT = -1,
    IL2CPP_DECIMAL_CMP_EQ,
    IL2CPP_DECIMAL_CMP_GT
} Il2CppDecimalCompareResult;

// Structure to access an encoded single floating point
typedef struct Il2CppSingle
{
#if IL2CPP_BYTE_ORDER == IL2CPP_BIG_ENDIAN
    uint32_t sign : 1;
    uint32_t exp : 8;
    uint32_t mant : 23;
#else
    uint32_t mant : 23;
    uint32_t exp : 8;
    uint32_t sign : 1;
#endif
} Il2CppSingle;

typedef union Il2CppSingle_float
{
    Il2CppSingle s;
    float f;
} Il2CppSingle_float;

#endif