Catch errors

Errors used in Gmm++ are defined in the file gmm/gmm\_except.h. In order to make easier the error catching all errors derive from the type std::logic\_error defined in the file `` stdexcept`` of the S.T.L.

A standard procedure, GMM\_STANDARD\_CATCH\_ERROR, is defined in gmm/gmm\_except.h. This procedure catches all errors and print the error message when an error occurs. It can be used in the main procedure of the program as follows:

int main(void) \{
  try \{
    ... main program ...
      \}
   GMM\_STANDARD\_CATCH\_ERROR;
\}

It is highly recommended to catch the errors at least in the main function, because if you do not so, you will not be able to see error messages.