enhanced dll

qse/lib/cmn/gdl.c

@@ -0,0 +1,33 @@
+/*
+ * $Id$
+ *
+    Copyright 2006-2009 Chung, Hyung-Hwan.
+    This file is part of QSE.
+
+    QSE is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as 
+    published by the Free Software Foundation, either version 3 of 
+    the License, or (at your option) any later version.
+
+    QSE is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public 
+    License along with QSE. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <qse/cmn/gdl.h>
+
+void qse_gdl_chain (qse_gdl_t* p, qse_gdl_t* x, qse_gdl_t* n)
+{
+	x->prev = p; x->next = n; n->prev = x; p->next = x;
+}
+
+void qse_gdl_unchain (qse_gdl_t* x)
+{
+	qse_gdl_t* p = x->prev;
+	qse_gdl_t* n = x->next;
+	n->prev = p; p->next = n;
+}