* Added some long-pending docu.

diff --git a/check/time_antipode.cpp b/check/time_antipode.cpp
index 43d4da493b5d16dc01592aa307a52ace8e00e6c8..f1bba8b1b3bc7efefa663563891923818b83a3ea 100644 (file)
--- a/check/time_antipode.cpp
+++ b/check/time_antipode.cpp
@@ -12,7 +12,7 @@
  *  This program is based on work by
  *      Isabella Bierenbaum <bierenbaum@thep.physik.uni-mainz.de> and
  *      Dirk Kreimer <dkreimer@bu.edu>.
- *  For details, please ask for the diploma theses of Isabella Bierenbaum.
+ *  For details, please see <http://www.arXiv.org/abs/hep-th/0111192>.
  */
 
 /*

diff --git a/ginac/ex.h b/ginac/ex.h
index 0bbe12995148187102e48db52e3136de7a6835ee..e819d13f10544eb8f34e44bf370c3b2995299399 100644 (file)
--- a/ginac/ex.h
+++ b/ginac/ex.h
@@ -344,6 +344,11 @@ bool ex::is_equal(const ex & other) const
 
 
 // utility functions
+
+/** Compare two objects of class quickly without doing a deep tree traversal.
+ *  @return "true" if they are equal
+ *          "false" if equality cannot be established quickly (e1 and e2 may
+ *          still be equal, in this case. */
 inline bool are_ex_trivially_equal(const ex &e1, const ex &e2)
 {
        return e1.bp == e2.bp;