How to check the type of a variable in C

Question

Hello,
I want to check the type of a variable in C.
I searched through the internet but it seems to be no solution. There's no function like 'typeof' in C as far as I now.
Please let me know if there's any answer.
Thank you.

Answer 1

Thanks a lot @ace and @vlad. I really appreciate your answers.

Answer 2

Simple solution:

Go to the beginning of the function, look to see how the variable is defined and name variables better in the future.

Complex solution:

enum t_typename {
TYPENAME_BOOL
TYPENAME_INT
...
} //You must define every single type. Unsigned int is different from singed int which is different from int.

#define typename(x) _Generic((x), \
\
_Bool: TYPENAME_BOOL, \
int: TYPENAME_INT \
...
)

Answer 3

@Ace Using sizeof is a bad solution as it could easily produce false positives (especially when checking to see if floating-point numbers are integers or vice-versa).