- printf("%s atan2l(%La,%La) want %La got %La ulperr %.3f = %a + %a\n",
- rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
+ printf("%s:%d: %s atan2l(%La,%La) want %La got %La ulperr %.3f = %a + %a\n",
+ p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);