Question

How to use _Static_assert to check if unsigned long long is 8 byte in compile time in C

Answer 1

typedef unsigned long long u64;

#define STATIC_ASSERT _Static_assert

STATIC_ASSERT(sizeof(u64) == 8, "Expected u64 to be 8 bytes");

int main(void) {


}




/*
compile:

0 error(s), 0 warning(s) (0 minute(s), 0 second(s))

*/

 

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