//en.cppreference.com/w/c/language/scalar_initialization.html
#include <stdbool.h>
int main(void)
{
bool b = true;
const double d = 3.14;
int k = 3.15; // conversion from double to int
int n = {12}, // optional braces
*p = &n, // non-constant expression OK for automatic variable
(*fp)(void) = main;
enum {RED, BLUE} e = RED; // enumerations are scalar types as well
}