ENH: transform: support for unsigned int

src/OpenFOAM/primitives/transform/transform.H

@@ -172,6 +172,20 @@ inline label invTransform(const tensor&, const label i)
 }
 
 
+//- No-op rotational transform of an unsigned integer
+inline unsigned int transform(const tensor&, const unsigned int i)
+{
+    return i;
+}
+
+
+//- No-op inverse rotational transform of an unsigned integer
+inline unsigned int invTransform(const tensor&, const unsigned int i)
+{
+    return i;
+}
+
+
 //- No-op rotational transform of a scalar
 inline scalar transform(const tensor&, const scalar s)
 {

[Mark OLESEN]

Might make sense to replace all of these with a generic version (untested):

template<class T>
typename std::enable_if<std::is_arithmetic<T>::value, T>::type
transform(const tensor&, const T val)
{
    return val;
}