Fix: add copy assignment functions to Wavetable and Wave

src/wave.h

@@ -37,6 +37,18 @@ public:
     m_tp = newWave.m_tp;
   }
 
+  Wave &operator=(const Wave &newWave)
+  {
+    if (this == &newWave) return *this;
+    delete m_tp;
+    m_tp = nullptr;
+    m_tp = new float_t[DEFAULT_N_WAVES];
+    for (uint16_t i = 0; i < DEFAULT_N_WAVES; i++) {
+      *(m_tp + i) = newWave.m_tp[i];
+    }
+    return *this;
+  }
+
   ~Wave()
   {
     delete m_tp;

src/wavetable.h

@@ -24,14 +24,35 @@ private:
   Wave *m_wtp; /*!< Pointer to table of Waves */
 
 public:
-  const uint16_t m_cid; /*!< Unique ID of wavetable */
+  uint16_t m_cid; /*!< Unique ID of wavetable */
   Wavetable(std::string name) : m_name{name}, m_cid(m_nid++)
   {
     // Allocate Wavetable memory
     m_wtp = new Wave[DEFAULT_N_WAVES];
   }
 
-  ~Wavetable() {
+  Wavetable(const Wavetable& newWavetable)
+  {
+    m_nid = newWavetable.m_nid;
+    m_cid = newWavetable.m_cid;
+    m_name = newWavetable.m_name;
+    m_wtp = newWavetable.m_wtp;
+  }
+
+  Wavetable& operator=(const Wavetable& newWavetable)
+  {
+    if (this == &newWavetable) return *this;
+    delete m_wtp;
+    m_wtp = nullptr;
+    m_wtp = new Wave[DEFAULT_N_WAVES];
+    for (uint16_t i = 0; i < DEFAULT_N_WAVES; i++) {
+      *(m_wtp + i) = newWavetable.m_wtp[i];
+    }
+    return *this;
+  }
+
+  ~Wavetable()
+  {
     delete m_wtp;
     m_wtp = nullptr;
   }