diff -r 62a9d46303d9 -r 046c055217f6 doc/maps2.dox
--- a/doc/maps2.dox	Fri Feb 08 09:56:46 2008 +0000
+++ b/doc/maps2.dox	Fri Feb 08 10:18:55 2008 +0000
@@ -42,7 +42,7 @@
 {
   typedef double Value;
   typedef Graph::Edge Key;
-  double operator[](const Key &e) const { return M_PI;}
+  double operator[](const Key &e) const { return PI;}
 };
 \endcode
 
@@ -51,7 +51,7 @@
 \code
 struct MyMap : public MapBase<Graph::Edge,double>
 {
-  Value operator[](const Key& e) const { return M_PI;}
+  Value operator[](const Key& e) const { return PI;}
 };
 \endcode