boot2

Playing with the boostrap
git clone https://git.ryansepassi.com/git/boot2.git
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240-parse-const-shortcircuit.c (516B)

      1 /* Constant-expression && / || must short-circuit (C11 §6.6 ¶3 and
      2  * §6.5.13/14): the unevaluated subexpression need not be a valid
      3  * constant expression. The parser's constant-expression evaluator
      4  * was eagerly evaluating both sides, so `1 || (1/0)` aborted with
      5  * "const-expr: divide by zero" instead of returning 1.
      6  */
      7 
      8 enum { ANY_TRUE  = 1 || (1/0) };
      9 enum { ANY_FALSE = 0 && (1/0) };
     10 
     11 int main(int argc, char **argv) {
     12     if (ANY_TRUE  != 1) return 1;
     13     if (ANY_FALSE != 0) return 2;
     14     return 0;
     15 }