diff --git a/libsrc/core/exception.cpp b/libsrc/core/exception.cpp
index a1909a7c..a1ed26f1 100644
--- a/libsrc/core/exception.cpp
+++ b/libsrc/core/exception.cpp
@@ -18,6 +18,26 @@
 
 namespace ngcore
 {
+
+
+  Exception :: Exception(const std::string& s)
+    : m_what(s) {}
+  
+  Exception :: Exception(const char* s)
+    : m_what(s) {}
+
+
+  void ThrowException(const std::string & s)
+  {
+    throw Exception (s);
+  }
+  
+  void ThrowException(const char * s)
+  {
+    throw Exception (s);
+  }
+  
+  
   namespace detail
   {
     static int exec(std::string cmd, std::string & out) {
diff --git a/libsrc/core/exception.hpp b/libsrc/core/exception.hpp
index 406a4eb2..bfec7a75 100644
--- a/libsrc/core/exception.hpp
+++ b/libsrc/core/exception.hpp
@@ -31,8 +31,8 @@ namespace ngcore
     Exception() = default;
     Exception(const Exception&) = default;
     Exception(Exception&&) = default;
-    Exception(const std::string& s) : m_what(s) {}
-    Exception(const char* s) : m_what(s) {}
+    Exception(const std::string& s); //  : m_what(s) {}
+    Exception(const char* s); //  : m_what(s) {}
     ~Exception() override = default;
 
     Exception& operator =(const Exception&) = default;
@@ -49,7 +49,10 @@ namespace ngcore
     /// implement virtual function of std::exception
     const char* what() const noexcept override { return m_what.c_str(); }
   };
-
+  
+  NGCORE_API void ThrowException(const std::string & s);
+  NGCORE_API void ThrowException(const char * s);
+  
   // Out of Range exception
   class NGCORE_API RangeException : public Exception
   {