X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Foperators.cpp;h=0ce17b6661e700778cf2063800514175a54da617;hb=48a6c5094dd4ff641d0875b1303cfa8b2b489da1;hp=1a1b6de497232d0b0cb5b8b34bc23318198ccbc4;hpb=a57c586be1fb226e9dd234b481c6b1da91013925;p=ginac.git

diff --git a/ginac/operators.cpp b/ginac/operators.cpp
index 1a1b6de4..0ce17b66 100644
--- a/ginac/operators.cpp
+++ b/ginac/operators.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's overloaded operators. */
 
 /*
- *  GiNaC Copyright (C) 1999-2005 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2007 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
@@ -377,6 +377,33 @@ std::ostream & operator<<(std::ostream & os, const exvector & e)
 	return os;
 }
 
+std::ostream & operator<<(std::ostream & os, const exset & e)
+{
+	print_context *p = get_print_context(os);
+	exset::const_iterator i = e.begin();
+	exset::const_iterator send = e.end();
+
+	if (i==send) {
+		os << "<>";
+		return os;
+	}
+
+	os << "<";
+	while (true) {
+		if (p == 0)
+			i->print(print_dflt(os));
+		else
+			i->print(*p);
+		++i;
+		if (i == send)
+			break;
+		os << ",";
+	}
+	os << ">";
+
+	return os;
+}
+
 std::ostream & operator<<(std::ostream & os, const exmap & e)
 {
 	print_context *p = get_print_context(os);