Bindings: Provide helper method that auto-converts analog

bindings/cxx/classes.cpp

@@ -1212,6 +1212,11 @@ void *Analog::data_pointer()
 	return _structure->data;
 }
 
+void Analog::get_data_as_float(float *dest)
+{
+	check(sr_analog_to_float(_structure, dest));
+}
+
 unsigned int Analog::num_samples() const
 {
 	return _structure->num_samples;

bindings/cxx/include/libsigrokcxx/libsigrokcxx.hpp

@@ -768,6 +768,11 @@ class SR_API Analog :
 public:
 	/** Pointer to data. */
 	void *data_pointer();
+	/**
+	 * Fills dest pointer with the analog data converted to float.
+	 * The pointer must have space for num_samples() floats.
+	 */
+	void get_data_as_float(float *dest);
 	/** Number of samples in this packet. */
 	unsigned int num_samples() const;
 	/** Channels for which this packet contains data. */