- rotate_31() and golden_hash_ratio() moved to utils.h

[ginac.git] / ginac / expair.h

diff --git a/ginac/expair.h b/ginac/expair.h
index 372091db3602846a9c743678ca87622c247a98a6..0a9867750ade0ca86a456bbf78de604f47f83ced 100644 (file)
--- a/ginac/expair.h
+++ b/ginac/expair.h
@@ -1,5 +1,8 @@
 /** @file expair.h
  *
+ *  Definition of expression pairs (building blocks of expairseq). */
+
+/*
  *  GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -23,6 +26,8 @@
 #include <ginac/ex.h>
 #include <ginac/numeric.h>
 
+namespace GiNaC {
+
 /** A pair of expressions.
  *  This similar to, but slightly extended STL's pair<> but we need to account
  *  for methods like .compare() */
@@ -192,4 +197,6 @@ public:
     }
 };
 
+} // namespace GiNaC
+
 #endif // ndef __GINAC_EXPAIR_H__