Filter: use CLASS_NO_COPY

libraries/Filter/LowPassFilter.h

@@ -56,6 +56,8 @@ public:
     T apply(const T &sample, float cutoff_freq, float dt);
     T apply(const T &sample);
 
+    CLASS_NO_COPY(DigitalLPF);
+
     void compute_alpha(float sample_freq, float cutoff_freq);
     
     // get latest filtered value from filter (equal to the value returned by latest call to apply method)
@@ -79,6 +81,8 @@ public:
     LowPassFilter(float cutoff_freq);
     LowPassFilter(float sample_freq, float cutoff_freq);
 
+    CLASS_NO_COPY(LowPassFilter);
+
     // change parameters
     void set_cutoff_frequency(float cutoff_freq);
     void set_cutoff_frequency(float sample_freq, float cutoff_freq);

libraries/Filter/LowPassFilter2p.h

@@ -34,7 +34,9 @@ public:
         float b1;
         float b2;
     };
-  
+
+    CLASS_NO_COPY(DigitalBiquadFilter);
+
     DigitalBiquadFilter();
 
     T apply(const T &sample, const struct biquad_params &params);
@@ -63,6 +65,8 @@ public:
     void reset(void);
     void reset(const T &value);
 
+    CLASS_NO_COPY(LowPassFilter2p);
+
 protected:
     struct DigitalBiquadFilter<T>::biquad_params _params;
     

libraries/Filter/SlewLimiter.h

@@ -17,6 +17,8 @@ class SlewLimiter {
 public:
     SlewLimiter(const float &slew_rate_max, const float &slew_rate_tau);
 
+    CLASS_NO_COPY(SlewLimiter);
+
     /*
       apply filter to sample, returning multiplier between 0 and 1 to keep
       output within slew rate