Il modo migliore per emulare __typeof__ per msvc o soluzione alternativa?

Question

Ho alcuni code

#define DEBUG_PRINT(x,...) \ 
    do \ 
    {\ 
     _Pragma("GCC diagnostic push") \ 
     _Pragma("GCC diagnostic ignored \"-Wunused-value\"") \ 
     __typeof__((0,x)) _x = x; \ 
     _Pragma("GCC diagnostic pop") \ 
     DEBUG_PRINT_PTR((#x), &_x, __VA_ARGS__);\ 
    } while(0) 


//The repetition of debug_print_printf_specifier is to avoid repetition for custom types. 
#define DEBUG_PRINT_PTR(xstr, xp,...) \ 
_Generic((*xp), \ 
const char *: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
char *: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
int: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
float: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
double: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
char: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
int16_t: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
uint16_t: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
uint32_t: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
int64_t: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
uint64_t: debug_print_printf_specifier(xstr, (void *)xp, TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))),\ 
default: DEBUG_PRINT_CUSTOM_TYPE(xstr, xp, __VA_ARGS__)) 

#define DEBUG_PRINT_CUSTOM_TYPE(xstr, xp,...) \ 
debug_print_custom_to_debug_string(xstr, xp, &((dsc_func_ptr){GET_CREATE_DEBUG_STRING_FUNC(xp)}), __FILE__, __LINE__, _my_func__,\ 
debug_print_options_apply_group_options(&((debug_print_options){__VA_ARGS__}))) 



#define GET_CREATE_DEBUG_STRING_FUNC(x) _Generic((x), \ 
debug_print_options *: debug_print_options_to_debug_string, \ 
debug_print_group_options *: debug_print_group_options_to_debug_string, \ 
default: print_not_valid_type_for_debug_print) 

Ho bisogno di un puntatore a x in DEBUG_PRINT che può essere una variabile o un'espressione. Per supportare le espressioni, lo assegno ad un temporaneo e poi ne prendo l'indirizzo. Potrei emulare __typeof__ con _Generic per un numero limitato di tipi, ma poi gli utenti avrebbero bisogno di aggiungere linee per i tipi personalizzati in 2 posizioni. C'è un altro modo di fare questo? Sarei ok solo con il supporto dell'ultimo compilatore Microsoft C.

Answer 1

char: debug_print_printf_specifier("x"//z.str, (void *)xp, \ 
TYPE_PTR_TO_PRINTF_SPECIFIER(xp), __FILE__, __LINE__, _my_func__, \ 
debug_print_options_apply_group_options(&((debug_print_options{__VA_ARGS__}))),\ 
z=ptr.x 
//just create a ptr z for x... :D 

semplice come sembra ..;)