GDefines.h

#ifndef GDEFINES_H
#define GDEFINES_H

namespace GW
{
// Ensure identical binary padding for structures on all platforms.
#pragma pack(push, 1)


    struct GUUIID // ALL GUUIID are stored little endian.
    {
        union
        {
            struct
            {
                unsigned int    byte4;
                unsigned short  byte2a;
                unsigned short  byte2b;
                unsigned char   byte8[8];
            };
            //For faster comparison.
            unsigned long long parts[2];
        };

        bool operator==(const GUUIID& _cmp) const
        {
            if (parts[0] != _cmp.parts[0] || parts[1] != _cmp.parts[1])
                return false;

            return true;
        }
    }; // Gateware guuiid mimic microsoft GUID structure in byte pattern.
       // Use built-in Visual Studio tools to generate unique ID for new interfaces.
#pragma pack(pop)

    enum GReturn
    {
        SUCCESS                 = 0xFFFFFFFF, /*< The function succeded. */
        FAILURE                 = 0, /*< The function failed (Check function documentation for possible reasons).*/
        INVALID_ARGUMENT        = 1, /*< An invalid argument was passed into the function.*/
        MEMORY_CORRUPTION       = 2, /*< A memory corruption occurred in the function.*/
        INTERFACE_UNSUPPORTED   = 3, /*< The requested interface is not supported by the object.*/
        FILE_NOT_FOUND          = 4, /*< A requested file is not found.*/
        REDUNDANT_OPERATION     = 5, /*< The requested operation will not do anything.*/
        FEATURE_UNSUPPORTED     = 6, /*< Attempted an operation that is currently not supported.*/
    };
};// end GW namespace


#define G_SUCCESS(_greturn_) ((~(_greturn_)) == 0x00000000)

/*
*   \param [in] _greturn_ The GReturn value to check.
*
*   \retval true GReturn value passed in was a failure code.
*   \retval false GReturn value passed in was SUCCESS.
*/
#define G_FAIL(_greturn_) ((_greturn_) < 0xFFFFFFFF)

// If the following symbol is defined by the compiler then you must also define the following DLL export symbols.
// ADD NON SYMBOLS FOR STANDARD BUILDS TO BE OVERRIDEN PER-PROJECT COMPILER SETTINGS.
#ifndef GATEWARE_EXPORT_IMPLICIT
    #define GATEWARE_EXPORT_IMPLICIT
#endif
#ifndef GATEWARE_EXPORT_EXPLICIT
    #define GATEWARE_EXPORT_EXPLICIT extern "C"
#endif

#endif // end include guard