package TestCase::Matrix4_16l : mulnum_t {
  has x11 : long;
  has x21 : long;
  has x31 : long;
  has x41 : long;
  has x12 : long;
  has x22 : long;
  has x32 : long;
  has x42 : long;
  has x13 : long;
  has x23 : long;
  has x33 : long;
  has x43 : long;
  has x14 : long;
  has x24 : long;
  has x34 : long;
  has x44 : long;
}