1.1 --- a/lemon/lp_base.h	Tue Jun 14 10:26:37 2005 +0000
     1.2 +++ b/lemon/lp_base.h	Tue Jun 14 13:55:28 2005 +0000
     1.3 @@ -47,12 +47,12 @@
     1.4  
     1.5      ///\param n is a floating id
     1.6      ///\return the corresponding fix id
     1.7 -    int fixId(int n) {return cross[n];}
     1.8 +    int fixId(int n) const {return cross[n];}
     1.9      ///Convert a fix id to a floating one
    1.10  
    1.11      ///\param n is a fix id
    1.12      ///\return the corresponding floating id
    1.13 -    int floatingId(int n) { return index[n];}
    1.14 +    int floatingId(int n) const { return index[n];}
    1.15      ///Add a new floating id.
    1.16  
    1.17      ///\param n is a floating id