...

cxx/mcc_mount_coord.h

@@ -80,21 +80,29 @@ public:
     // }
 
     // by default angle is in radians
-    template <typename T>
-    MccAngle(const T& val, const MccRadianTag = MccRadianTag{})
-        requires std::is_arithmetic_v<T>
-        : _angleInRads(val)
-    {
-    }
+    // template <typename T>
+    // MccAngle(const T& val, const MccRadianTag = MccRadianTag{})
+    //     requires std::is_arithmetic_v<T>
+    //     : _angleInRads(val)
+    // {
+    // }
+
+    // // construct angle in degrees, e.g.:
+    // //     auto ang = MccAngle{180.0, mcc_degrees};
+    // template <typename T>
+    // MccAngle(const T& val, const MccDegreeTag)
+    //     requires std::is_arithmetic_v<T>
+    //     : _angleInRads(val * utils::deg2radCoeff)
+    // {
+    // }
+
+
+    // by default angle is in radians
+    MccAngle(const double& val, const MccRadianTag = MccRadianTag{}) : _angleInRads(val) {}
 
     // construct angle in degrees, e.g.:
     //     auto ang = MccAngle{180.0, mcc_degrees};
-    template <typename T>
-    MccAngle(const T& val, const MccDegreeTag)
-        requires std::is_arithmetic_v<T>
-        : _angleInRads(val * utils::deg2radCoeff)
-    {
-    }
+    MccAngle(const double& val, const MccDegreeTag) : _angleInRads(val * utils::deg2radCoeff) {}
 
 
 
@@ -126,6 +134,31 @@ public:
 
     virtual ~MccAngle() = default;
 
+    template <std::derived_from<MccAngle> T>
+    auto& operator=(this T&& self, const T& other)
+    {
+        std::forward<decltype(self)>(self)._angleInRads = other._angleInRads;
+
+        return self;
+    }
+
+    template <std::derived_from<MccAngle> T>
+    auto& operator=(this T&& self, T&& other)
+    {
+        std::forward<decltype(self)>(self)._angleInRads = std::move(other._angleInRads);
+
+        return self;
+    }
+
+    template <typename T>
+    auto& operator=(this auto&& self, const T& val)
+        requires std::is_arithmetic_v<T>
+    {
+        std::forward<decltype(self)>(self)._angleInRads = val;
+
+        return self;
+    }
+
     // normalize coordinate
     template <norm_kind_t KIND>
     MccAngle& normalize()