Jay McCarthy <jay@racket-lang.org>
This package is for writing C programs in DrRacket. I use it in class to demonstrate things in C very quickly.
#lang c
#include <stdio.h>
int main() {
int x = 0.0;
float r = (++x) / (++x);
printf("%4.2f\n", r);
r = 1.0 / 2.0;
printf("%4.2f\n", r);
return 0;
}