Fix constructor

Author: geonove

ddsketch/include/ddsketch.hpp

@@ -34,20 +34,12 @@ namespace datasketches {
 template<store_concept Store, class Mapping>
 class  DDSketch {
 public:
-  // TODO
-  // DDSketch() = default;
-  // template<auto... Args>
-  // explicit DDSketch(const double& relative_accuracy):
-  // positive_store(store_factory<Store>::new_store(Args...)),
-  // negative_store(store_factory<Store>::new_store(Args...)),
-  // index_mapping(Mapping(relative_accuracy)) {}
+  explicit DDSketch(const double& relative_accuracy);
 
   DDSketch(const Store& positive_store, const Store& negative_store, const Mapping& mapping, const double& zero_count = 0.0, const double& min_indexed_value = 0.0);
 
   explicit DDSketch(const Mapping& index_mapping);
 
-  explicit DDSketch(double relative_accuracy);
-
   void update(const double&value, const double& count = 1.0);
 
   template<store_concept OtherStore>

ddsketch/include/ddsketch_impl.hpp

@@ -27,7 +27,7 @@
 namespace datasketches {
 
 template<store_concept Store, class Mapping>
-DDSketch<Store, Mapping>::DDSketch(double relative_accuracy): DDSketch(Mapping(relative_accuracy)) {}
+DDSketch<Store, Mapping>::DDSketch(const double& relative_accuracy): DDSketch(Mapping(relative_accuracy)) {}
 
 template<store_concept Store, class Mapping>
 DDSketch<Store, Mapping>::DDSketch(const Mapping& index_mapping):

ddsketch/test/DDSketchTest.cpp

@@ -577,6 +577,8 @@ TEST_CASE("quantile", "[ddsketch]") {
     ddsketch.update(val);
   }
 
+  DDSketch<CollapsingLowestDenseStore<8, A>, LinearlyInterpolatedMapping> sk(0.01);
+
   // std::cout << ddsketch.get_quantile(0.5) << std::endl;
   // std::cout << ddsketch.get_rank(4) << std::endl;
 }