X-Git-Url: https://www.fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=mtp.git;a=blobdiff_plain;f=mtp_graph.cc;h=2832e71f6ca8fcae738357e4c5872d4a39e9f442;hp=343ebf79a60a98d145138891d286ec70915280e0;hb=276df8ea8b9761cc729048d8e5c42670debc5825;hpb=9aa2c8c57bbe0ac533d081fa3917aa037e65c766

diff --git a/mtp_graph.cc b/mtp_graph.cc
index 343ebf7..2832e71 100644
--- a/mtp_graph.cc
+++ b/mtp_graph.cc
@@ -63,9 +63,7 @@ void Edge::invert() {
   positivized_length = - positivized_length;
   origin_vertex->del_leaving_edge(this);
   terminal_vertex->add_leaving_edge(this);
-  Vertex *t = terminal_vertex;
-  terminal_vertex = origin_vertex;
-  origin_vertex = t;
+  swap(terminal_vertex, origin_vertex);
 }
 
 //////////////////////////////////////////////////////////////////////