maked return result from signal generator

bin/main.cpp

@@ -18,6 +18,6 @@ auto main() -> int
   {
     std::vector<float> s;
     for (auto p : r.m_data) s.push_back(p.m_value[0]);
-    // hack::log()(s);
+    hack::log()(s);
   }
 }

bin/main.signal_generator.cpp

@@ -9,5 +9,8 @@ auto main() -> int
 
   auto s = generator.generate(st);
   hack::log()(st.get_name());
-  hack::log()(s);
+
+  std::vector<float> ss;
+  for (auto p : s.m_data) ss.push_back(p.m_value[0]);
+  hack::log()(ss);
 }