#ifdef GUI_SIZE

GUI_SIZE(Background)
GUI_SIZE(Button)
GUI_SIZE(Slider)

#undef GUI_SIZE
#endif

#define QUOTED_EXPAND(str) #str
#define QUOTED(str) QUOTED_EXPAND(str)

enum GuiSizes {
	#define GUI_SIZE(name) GuiSizes_##name,
	#include "sizes.h"	
	GuiSizes_Count,
};

const char *guiSizeNames[GuiSizes_Count] = {
	#define GUI_SIZE(name) QUOTED(name),
	#include "sizes.h"
};

#ifndef X_LIST
#define X_LIST \
    X(Entry0)  \
    X(Entry1)  \
    X(Entry2)  // etc...
#endif

// usage
enum ExampleEnum {
#define X(name) name,
    X_LIST
#undef X
};
static const char* ExampleEnumStrings[] = {
#define X(name) #name,
    X_LIST
#undef X
};