libpqxx + postgresql connection

[LiveShell <liveshell@xxxxxxxxx>]

Hi all,

              I am using libpqxx to connct to Pgsql database. Following is my code in a connect method of a class

 

try
 {
      conninfo = "host=127.0.0.1 dbname = DatabaseName user=uname";
       conn = new connection(conninfo);

}
 catch (const sql_error &roSqlQueryError)
   {
        printf("In Error \n"); 
        string szQueryError = roSqlQueryError.what();
           szQueryError += "Query was:: ";
           szQueryError += roSqlQueryError.query();
           throw runtime_error(szQueryError);
  }

But when i use this connection in later stage it results to segmentation fault.

I changed database name to wrong dbname (non existing database) then also it doesnt go to catch staatement...

Can ny body tell me what is teh problem with this????