--- trunk/OOPSE-4/src/utils/StringUtils.hpp	2005/01/14 16:49:46	1945
+++ trunk/OOPSE-4/src/utils/StringUtils.hpp	2005/02/07 19:13:43	1980
@@ -113,10 +113,22 @@ namespace oopse {
     template<typename T>
     std::string toString(const T& v) {
         std::ostringstream oss;        
-        oss << v;
+        if (!oss << v) {
+            std::cerr << "toString Error" << std::endl;
+        }
         return oss.str();
     }
 
+    template<typename T>
+    T lexi_cast(const std::string& str) {
+        T result;
+        std::istringstream iss(str);        
+        if (!(iss >> result)) {
+            std::cerr << "lexi_cast Error" << std::endl;
+        }
+        return result;
+    }
+
     /**@todo need implementation */
     std::string getPrefix(const std::string& str);