Add support to Base::FormatT<> for formatting multiple arguments and access to the buffer.

Utils/IOutputStream.hh

@@ -207,11 +207,25 @@ public:
     print(bffr_, _bffr_size, _frmt, _vrbl);
   }
 
+
+#if __cplusplus >= 201103L || _MSC_VER >= 1900 //C++11 support
+  
+  // Variadic template constructor
+  template <typename... ArgT> 
+  FormatT(const char* const _frmt, const ArgT&... _args)
+  {
+    print(bffr_, _bffr_size, _frmt, _args...);
+  }
+
+#endif//C++11 support
+
   friend IOutputStream& operator<<(IOutputStream& _os, const Self& _frmt)
   {
     return _os << _frmt.bffr_;
   }
 
+  const char* buffer() const { return bffr_; }
+
 private:
   char bffr_[_bffr_size];
 };