gcc/testsuite/gcc.c-torture/execute/pr42248.c

typedef struct {
  _Complex double a;
  _Complex double b;
} Scf10;

Scf10 g1s;

void
check (Scf10 x, _Complex double y)
{
  if (x.a != y) __builtin_abort ();
}

void
init (Scf10 *p, _Complex double y)
{
  p->a = y;
}

int
main ()
{
  init (&g1s, (_Complex double)1);
  check (g1s, (_Complex double)1);

  return 0;
}