Minor changes to math module

-Fixed missing Set method: "X::Set(const X&)"
-Removed operator String


Former-commit-id: 690f161704ed85fc57a62b812af7933e390572b5

include/Nazara/Math/Quaternion.inl

@@ -221,10 +221,7 @@ NzQuaternion<T>& NzQuaternion<T>::Set(const NzQuaternion<U>& quat)
 template<typename T>
 NzQuaternion<T>& NzQuaternion<T>::Set(const NzQuaternion& quat)
 {
-	w = quat.w;
-	x = quat.x;
-	y = quat.y;
-	z = quat.z;
+	std::memcpy(this, &quat, sizeof(NzQuaternion));
 
 	return *this;
 }
@@ -259,12 +256,6 @@ NzString NzQuaternion<T>::ToString() const
 	return ss << "Quaternion(" << w << " | " << x << ", " << y << ", " << z << ')';
 }
 
-template<typename T>
-NzQuaternion<T>::operator NzString() const
-{
-	return ToString();
-}
-
 template<typename T>
 NzQuaternion<T>& NzQuaternion<T>::operator=(const NzQuaternion& quat)
 {