From df27e9de2a3f09aa315d1fe9fb90a3e5a5751989 Mon Sep 17 00:00:00 2001
From: Christian Bauer <Christian.Bauer@uni-mainz.de>
Date: Wed, 6 Aug 2003 18:43:18 +0000
Subject: [PATCH] print_tree: only print the "nops=" line when nops() > 0

---
 ginac/basic.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/ginac/basic.cpp b/ginac/basic.cpp
index 483844c0..09d9b79b 100644
--- a/ginac/basic.cpp
+++ b/ginac/basic.cpp
@@ -185,9 +185,10 @@ void basic::do_print(const print_context & c, unsigned level) const
 void basic::do_print_tree(const print_tree & c, unsigned level) const
 {
 	c.s << std::string(level, ' ') << class_name()
-	    << std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
-	    << ", nops=" << nops()
-	    << std::endl;
+	    << std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec;
+	if (nops())
+		c.s << ", nops=" << nops();
+	c.s << std::endl;
 	for (size_t i=0; i<nops(); ++i)
 		op(i).print(c, level + c.delta_indent);
 }
-- 
2.44.0