https://twitter.com/marionpdaly/status/1022586344764256262

moon.c

#include <stdio.h>
#define In_the_Name_of_the_Moon struct
#define I_Will_Punish_You int
#define Tuxedo_Max char*

In_the_Name_of_the_Moon Foo {
    I_Will_Punish_You X;
    Tuxedo_Max Y;
};

int main() {
    In_the_Name_of_the_Moon Foo foo = { .X = 10, .Y = "Mammou" };
    printf("%s, say it once more\n", foo.Y);
}