added double conversion before cast to string to T conversion

src/util_string.h

@@ -68,45 +68,39 @@ string_contains(const std::string &s, unsigned char ch)
  * list is returned with the result boolean.
  **/
 #include <sstream>
-template<typename T>
-std::pair<bool,T>
+template <typename T>
+std::pair<bool, T>
 convert_to_number(const std::string &str)
 {
-
   std::stringstream ss(str);
-  T number = 0;
+  double number = 0;
   ss >> number;
 
-  if (ss.fail())
-    {
-      return {false,0};
-    }
+  if (ss.fail()) { return { false, 0 }; }
 
-  return {true,number};
+  return { true, number };
 }
-template<typename T>
+
+/* This function seperates a string into multiple tokens converted to T
+ * CAUTION if T=int and scientific notation is used a 1.01e30 would be converted
+ * to a simple 1 */
+template <typename T>
 std::pair<bool, std::vector<T>>
 tokenize_comma_seperated_number_list(const std::string &args)
 {
-  auto tokens = split_with_seperator(args, ',');
+  std::stringstream ss(args);
+  std::string token;
   std::vector<T> numbers;
-  bool retval = true;
-  for (const auto &t : tokens)
+  while (std::getline(ss, token, ','))
     {
-      std::pair<bool,T> res = convert_to_number<T>(t);
-      if (!res.first)
-        {
-          retval = false;
-          tokens = {};
-          break;
-        }
+      std::pair<bool, T> res = convert_to_number<T>(token);
+      std::cout << token <<" " << res.first << " " << res.second << std::endl;
+      if (!res.first) { return { false, {} }; }
       numbers.push_back(res.second);
     }
-  return std::make_pair(retval, numbers);
+  return std::make_pair(true, numbers);
 }
 
-
-
 namespace Util
 {
 namespace String