floating point wat

wut.c

#include <stdio.h>
#define MAGIC 99586915107664152904966939075856564224.0

int main() {
    float x = MAGIC;
    if (x == 1.0/(1.0/x)) printf("float division involutive.\n");
    if (x != 1/(1/x)) printf("... but not with 1/(1/x).\n");
    double y = MAGIC;
    if (y == 1/(1/y)) printf("... but it is with doubles.\n");
    return 0;
}