From 9d2ba6504125b9c7f0ec8f547ee39a96c6e3806d Mon Sep 17 00:00:00 2001
From: Christian Bauer <Christian.Bauer@uni-mainz.de>
Date: Wed, 22 Jan 2003 20:07:30 +0000
Subject: [PATCH] synced to 1.1

---
 ginac/idx.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ginac/idx.cpp b/ginac/idx.cpp
index 82052d88..f69613c6 100644
--- a/ginac/idx.cpp
+++ b/ginac/idx.cpp
@@ -21,6 +21,7 @@
  */
 
 #include <iostream>
+#include <sstream>
 #include <stdexcept>
 
 #include "idx.h"
@@ -546,8 +547,11 @@ ex minimal_dim(const ex & dim1, const ex & dim2)
 		return dim1;
 	else if (dim1 > dim2 || (is_a<symbol>(dim1) && is_exactly_a<numeric>(dim2)))
 		return dim2;
-	else
-		throw (std::runtime_error("minimal_dim(): index dimensions cannot be ordered"));
+	else {
+		std::ostringstream s;
+		s << "minimal_dim(): index dimensions " << dim1 << " and " << dim2 << " cannot be ordered";
+		throw (std::runtime_error(s.str()));
+	}
 }
 
 } // namespace GiNaC
-- 
2.44.0