renamed capwap directory to cw.

FossilOrigin-Name: 8a43dd9d05a4cb73210243ddd8df2a26f16c7ef2c4d4e36ab446de1f65d88223

src/cw/mavliter_next.c

@@ -0,0 +1,69 @@
+/*
+    This file is part of libcapwap.
+
+    libcapwap is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    libcapwap 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+/**
+ *@file 
+ *@brief Implementation of mavliter_next
+ */
+
+#include "mavl.h"
+
+/**
+ * Get the next element within an AVL Tree.
+ * @param i pointer to AVL Iterator
+ * @return the element or NULL if there is no next elemeent.
+ */ 
+void * mavliter_next(mavliter_t *i)
+{
+
+	while ( i->stack_ptr) {
+		i->stack_ptr--;
+		i->cur=i->stack[i->stack_ptr];
+			
+		if (!i->cur)
+			continue;
+
+		if ((i->stack_ptr)&1) {
+			return i->cur->data;
+		}
+		break;		
+
+	}
+
+
+	if (!i->cur){
+		return NULL;
+	}
+
+	while(i->cur->left) {
+		/* push right branch */
+		i->stack[i->stack_ptr++]=i->cur->right;
+		
+		/* push node */
+		i->stack[i->stack_ptr++]=i->cur;
+
+		i->cur=i->cur->left;
+
+	}
+
+	i->stack[i->stack_ptr++]=i->cur->right;
+
+	return i->cur->data;
+}
+
+