1.1 --- a/lemon/lp_base.h	Tue Apr 07 14:50:20 2009 +0100
     1.2 +++ b/lemon/lp_base.h	Wed Apr 08 22:49:28 2009 +0200
     1.3 @@ -69,6 +69,21 @@
     1.4        MAX
     1.5      };
     1.6  
     1.7 +    ///Enum for \c messageLevel() parameter
     1.8 +    enum MessageLevel {
     1.9 +      /// no output (default value)
    1.10 +      MESSAGE_NOTHING,
    1.11 +      /// error messages only
    1.12 +      MESSAGE_ERROR,
    1.13 +      /// warnings
    1.14 +      MESSAGE_WARNING,
    1.15 +      /// normal output
    1.16 +      MESSAGE_NORMAL,
    1.17 +      /// verbose output
    1.18 +      MESSAGE_VERBOSE
    1.19 +    };
    1.20 +    
    1.21 +
    1.22      ///The floating point type used by the solver
    1.23      typedef double Value;
    1.24      ///The infinity constant
    1.25 @@ -973,6 +988,8 @@
    1.26  
    1.27      virtual const char* _solverName() const = 0;
    1.28  
    1.29 +    virtual void _messageLevel(MessageLevel level) = 0;
    1.30 +
    1.31      //Own protected stuff
    1.32  
    1.33      //Constant component of the objective function
    1.34 @@ -1527,6 +1544,9 @@
    1.35      ///Clears the problem
    1.36      void clear() { _clear(); }
    1.37  
    1.38 +    /// Sets the message level of the solver
    1.39 +    void messageLevel(MessageLevel level) { _messageLevel(level); }
    1.40 +
    1.41      ///@}
    1.42  
    1.43    };