isVec - multiple declarations

Enum member isVec

Check whether VecT is a Vec


						
				enum isVec(VecT)
				 = __traits(isSame, TemplateOf!VecT, Vec);

Check whether VecT is a Vec of size N


						
				enum isVec(ulong N, VecT)
				 = isVec!VecT && (VecT.length == N);