define some return types in utilitiesPairID.jl

Author: AndreaNeumayr

src/contactDetection/ContactDetectionMPR/utilitiesPairID.jl

@@ -5,14 +5,14 @@
 const i16max = Int64(typemax(Int16))
 const i32max = Int64(typemax(Int32))
 
-pack16(i1::Integer, i2::Integer) = Int64(i1) + i16max*Int64(i2)
+pack16(i1::Integer, i2::Integer)::Integer = Int64(i1) + i16max*Int64(i2)
 
-function pack(i1::Integer, i2::Integer,i3::Integer,i4::Integer)
-   @assert(i1 >= 0 && i1 <= typemax(Int16))
-   @assert(i2 >= 0 && i2 <= typemax(Int16))
-   @assert(i3 >= 0 && i3 <= typemax(Int16))
-   @assert(i4 >= 0 && i4 <= typemax(Int16))
-   return pack16(i1,i2) + i32max*pack16(i3,i4)
+function pack(i1::Integer, i2::Integer,i3::Integer,i4::Integer)::Integer
+    @assert(i1 >= 0 && i1 <= typemax(Int16))
+    @assert(i2 >= 0 && i2 <= typemax(Int16))
+    @assert(i3 >= 0 && i3 <= typemax(Int16))
+    @assert(i4 >= 0 && i4 <= typemax(Int16))
+    return pack16(i1,i2) + i32max*pack16(i3,i4)
 end
 
 
@@ -41,7 +41,7 @@ end
 
 ### -------------------computation of pairID -----------------------------------
 ### it returns a unique ID
-function orderPositions(is,i,js,j)
+function orderPositions(is,i,js,j)::Integer
     if is < js
         return pack(is,i,js,j)
     elseif is > js
@@ -53,7 +53,7 @@ end; end
 #getPositionsOfObj(scene::Composition.Scene, obj::Composition.Object3D,
 #                  movablePos::Nothing) = (false, 0, 0)
 function getPositionsOfObj(scene::Composition.Scene,
-            obj::Composition.Object3D, movablePos::Int64)
+            obj::Composition.Object3D, movablePos::Int64)::Tuple{Bool, Int64, Int64}
     if movablePos == 0
         return (false, 0, 0)
     else
@@ -63,7 +63,7 @@ end
 
 function computePairID(scene::Composition.Scene,
         actObj::Composition.Object3D, nextObj::Composition.Object3D,
-        is, i, js, j)
+        is, i, js, j)::Integer
     # is: actual super - object
     # js: subsequent super - object
     # i: Object3D of is_th super - object