2 -- { dg-options "-O3" }
4 with Opt18_Pkg; use Opt18_Pkg;
8 function Mag (Item : in Cart_Vector_Type) return Float is
10 return Sqrt (Item (X) * Item (X) + Item (Y) * Item (Y)
11 + Item (Z) * Item (Z));
14 function Unit_Quaternion_To_Mag_Axis (Quaternion : in Unit_Quaternion_Type)
15 return Mag_Axis_Type is
17 := Mag (Cart_Vector_Type'(Quaternion.X, Quaternion.Y, Quaternion.Z));
19 if Sin_Half > 3.0 * First_Order_Trig then
21 (Mag => Atan2 (Double_Trig (Unchecked_Trig_Pair (Sin_Half,
23 Axis => Unit_Vector_Type'(Quaternion.X / Sin_Half,
24 Quaternion.Y / Sin_Half,
25 Quaternion.Z / Sin_Half));