X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Finifcns_nstdsums.cpp;h=f3e4f19edbc5f23b0f6ffb32c728684af57ee5f4;hp=b4105338d329a118ba8317613a1aa5199566a592;hb=0eb0cb55c76ceab744847d6e66533e292774e1cb;hpb=554722426543a6e1445ead11167107a69fd21af9

diff --git a/ginac/inifcns_nstdsums.cpp b/ginac/inifcns_nstdsums.cpp
index b4105338..f3e4f19e 100644
--- a/ginac/inifcns_nstdsums.cpp
+++ b/ginac/inifcns_nstdsums.cpp
@@ -47,7 +47,7 @@
  */
 
 /*
- *  GiNaC Copyright (C) 1999-2009 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2011 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
@@ -659,6 +659,8 @@ Gparameter::const_iterator check_parameter_G(const Gparameter& a, int scale,
 			++trailing_zeros;
 		}
 	}
+	if (lastnonzero == a.end())
+		return a.end();
 	return ++lastnonzero;
 }
 
@@ -1684,7 +1686,7 @@ static void Li_print_latex(const ex& m_, const ex& x_, const print_context& c)
 	} else {
 		x = lst(x_);
 	}
-	c.s << "\\mbox{Li}_{";
+	c.s << "\\mathrm{Li}_{";
 	lst::const_iterator itm = m.begin();
 	(*itm).print(c);
 	itm++;
@@ -2200,7 +2202,7 @@ static ex S_deriv(const ex& n, const ex& p, const ex& x, unsigned deriv_param)
 
 static void S_print_latex(const ex& n, const ex& p, const ex& x, const print_context& c)
 {
-	c.s << "\\mbox{S}_{";
+	c.s << "\\mathrm{S}_{";
 	n.print(c);
 	c.s << ",";
 	p.print(c);
@@ -3406,7 +3408,7 @@ static void H_print_latex(const ex& m_, const ex& x, const print_context& c)
 	} else {
 		m = lst(m_);
 	}
-	c.s << "\\mbox{H}_{";
+	c.s << "\\mathrm{H}_{";
 	lst::const_iterator itm = m.begin();
 	(*itm).print(c);
 	itm++;