Add Slice assignment operator.

src/faust_linear_operator/CPU/faust_Slice.cpp

@@ -63,4 +63,10 @@ namespace Faust {
 	{
 		return end_id - start_id;
 	}
+
+	Slice& Slice::operator=(const Slice& s)
+	{
+		copy(s);
+		return *this;
+	}
 }

src/faust_linear_operator/CPU/faust_Slice.h

@@ -19,6 +19,7 @@ namespace Faust
 		bool belong_to(faust_unsigned_int min_i, faust_unsigned_int max_i);
 		bool belong_to(Slice& s);
 		void copy(const Slice& s);
+		Slice& operator=(const Slice&);
 
 		void display();
 		static void swap(Slice& s1, Slice& s2);