boot2

Playing with the boostrap
git clone https://git.ryansepassi.com/git/boot2.git
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290-parse-const-ternary-shortcircuit.c (515B)

      1 /* Constant-expression ternary `?:` must evaluate only the chosen
      2  * branch (C11 §6.6 ¶3 + §6.5.15/4): the unevaluated subexpression
      3  * need not be a valid constant expression. parse-const-cond was
      4  * eagerly evaluating both arms, so `1 ? 2 : 1/0` aborted with
      5  * "const-expr: divide by zero" instead of returning 2.
      6  */
      7 
      8 enum { TRUE_ARM  = 1 ? 7 : 1/0 };
      9 enum { FALSE_ARM = 0 ? 1/0 : 11 };
     10 
     11 int main(int argc, char **argv) {
     12     if (TRUE_ARM  != 7)  return 1;
     13     if (FALSE_ARM != 11) return 2;
     14     return 0;
     15 }