source: CIVL/mods/dev.civl.abc/examples/compound2.c

// a is initialized using a compound literal to define
// a literal array.  The array is converted to pointer to int.
void main() {
  int *a = (int[]){ [2] = 3 };
  
  // int *b = { [2] = 3 };  // wrong
  a[1]=1;
}