1.1 --- a/doc/maps2.dox	Tue Mar 13 15:35:56 2007 +0000
     1.2 +++ b/doc/maps2.dox	Tue Mar 13 15:42:06 2007 +0000
     1.3 @@ -42,7 +42,7 @@
     1.4  {
     1.5    typedef double Value;
     1.6    typedef Graph::Edge Key;
     1.7 -  double operator[](Key e) const { return M_PI;}
     1.8 +  double operator[](const Key &e) const { return M_PI;}
     1.9  };
    1.10  \endcode
    1.11  
    1.12 @@ -51,7 +51,7 @@
    1.13  \code
    1.14  struct MyMap : public MapBase<Graph::Edge,double>
    1.15  {
    1.16 -  Value operator[](Key e) const { return M_PI;}
    1.17 +  Value operator[](const Key& e) const { return M_PI;}
    1.18  };
    1.19  \endcode
    1.20