negate method
Negate this.
Implementation
void negate() {
  _v4storage[3] = -_v4storage[3];
  _v4storage[2] = -_v4storage[2];
  _v4storage[1] = -_v4storage[1];
  _v4storage[0] = -_v4storage[0];
}
Negate this.
void negate() {
  _v4storage[3] = -_v4storage[3];
  _v4storage[2] = -_v4storage[2];
  _v4storage[1] = -_v4storage[1];
  _v4storage[0] = -_v4storage[0];
}