From 172d1d7b2a12e2b3b6ff4ff35c37aeccafed3edb Mon Sep 17 00:00:00 2001
From: Richard Kreckel <Richard.Kreckel@uni-mainz.de>
Date: Sun, 26 Dec 2004 18:48:29 +0000
Subject: [PATCH] * Minor optimization: swap instead of assign.

---
 ginac/matrix.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ginac/matrix.cpp b/ginac/matrix.cpp
index e24f6447..4c25d12b 100644
--- a/ginac/matrix.cpp
+++ b/ginac/matrix.cpp
@@ -1205,7 +1205,7 @@ ex matrix::determinant_minor() const
 					Pkey[j] = Pkey[j-1]+1;
 		} while(fc);
 		// next column, so change the role of A and B:
-		A = B;
+		A.swap(B);
 		B.clear();
 	}
 	
-- 
2.49.0