pseries::expand(): do not generate zero terms.

[ginac.git] / ginac / expairseq.h

diff --git a/ginac/expairseq.h b/ginac/expairseq.h
index ee7ddbd3fcc358d5f03e7b0167a9275fb2eb7604..bba0902dcc1a103be4d5cc1060364fa59f663890 100644 (file)
--- a/ginac/expairseq.h
+++ b/ginac/expairseq.h
@@ -3,7 +3,7 @@
  *  Interface to sequences of expression pairs. */
 
 /*
- *  GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -57,7 +57,7 @@ typedef std::vector<epplist> epplistvector;
  *  the same way.) */
 class expairseq : public basic
 {
-       GINAC_DECLARE_REGISTERED_CLASS(expairseq, basic)
+       GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(expairseq, basic)
 
 // member functions
 
@@ -194,11 +194,6 @@ protected:
 #endif // def EXPAIRSEQ_USE_HASHTAB
 };
 
-// global constants
-
-extern const expairseq some_expairseq;
-extern const type_info & typeid_expairseq;
-
 // utility functions
 inline const expairseq &ex_to_expairseq(const ex &e)
 {