* Fixed memory leak in type_helper

include/cppcore/misc/type_helper.h

@@ -16,7 +16,7 @@ namespace cppcore
         /**
          * @brief Get the name of the type.
          */
-        static inline std::string name();
+        static inline const std::string& name();
     };
 
 

include/cppcore/misc/type_helper.inl

@@ -1,16 +1,37 @@
 #pragma once
 
+#include <memory>
+
 #include "type_helper.h"
 
 namespace cppcore
 {
 
+    namespace __impl
+    {
+
+        template<typename T>
+        std::string get_type_name()
+        {
+            using ptr_u = std::unique_ptr<char, decltype(&free)>;
+
+            int status;
+            ptr_u name(
+                abi::__cxa_demangle(typeid(T).name(), 0, 0, &status),
+                &free);
+
+            return std::string(name
+                ? name.get()
+                : typeid(T).name());
+        }
+
+    }
+
     template<typename T>
-    std::string type_helper<T>::name()
+    const std::string& type_helper<T>::name()
     {
-        int status;
-        auto name = abi::__cxa_demangle(typeid(T).name(), 0, 0, &status);
-        return std::string(name ? name : typeid(T).name());
+        static auto value = __impl::get_type_name<T>();
+        return value;
     }
 
     /**