X-Git-Url: https://ginac.de/ginac.git/static/gitweb.css/ginac.git?a=blobdiff_plain;f=ginac%2Fpseries.h;h=26c27306250a03a03177764962efc32734349cfc;hb=06e1c4cc6967333ae1597d5e08dd1865ba64c1b2;hp=bd2db158baad17a1aabc73319b4ce312aba4fb27;hpb=0cf43f3096cbcfc7472ff9c8927c6eb74f2eeb8c;p=ginac.git

diff --git a/ginac/pseries.h b/ginac/pseries.h
index bd2db158..26c27306 100644
--- a/ginac/pseries.h
+++ b/ginac/pseries.h
@@ -3,7 +3,7 @@
  *  Interface to class for extended truncated power series. */
 
 /*
- *  GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 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
@@ -101,17 +101,8 @@ protected:
 	ex point;
 };
 
-/** Return a reference to the pseries object embedded in an expression.
- *  The result is undefined if the expression does not contain a pseries
- *  object at its top level.
- *
- *  @param e expression
- *  @return reference to pseries object
- *  @see is_a<> */
-inline const pseries &ex_to_pseries(const ex &e)
-{
-	return static_cast<const pseries &>(*e.bp);
-}
+
+// utility functions
 
 /** Specialization of is_exactly_a<pseries>(obj) for pseries objects. */
 template<> inline bool is_exactly_a<pseries>(const basic & obj)
@@ -129,7 +120,7 @@ template<> inline bool is_exactly_a<pseries>(const basic & obj)
  *  @see pseries::convert_to_poly */
 inline ex series_to_poly(const ex &e)
 {
-	return (static_cast<const pseries &>(*e.bp).convert_to_poly(true));
+	return (ex_to<pseries>(e).convert_to_poly(true));
 }
 
 inline bool is_terminating(const pseries & s)