boot2

Playing with the boostrap
git clone https://git.ryansepassi.com/git/boot2.git
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071-fnptr-call.c (164B)

      1 /* §K.2 — function-pointer call. */
      2 int triple(int x) { return x + x + x; }
      3 
      4 int main(void) {
      5     int (*fp)(int);
      6     fp = triple;
      7     return fp(7);  /* 21 */
      8 }