Added exists and length

C-RK/C-RK-Week2/llist.c

@@ -139,4 +139,35 @@ void clear()
 	printf("De gehele lijst in gecleared!\n");
 }
 
+int length()
+{
+	int idx = 0;
+	struct node *p = pStart;
+
+	for (; NULL != p->next; p = p->next)
+	{		
+		idx++;
+	}
+
+	return idx;
+}
+
+int exists(int data)
+{
+	int idx = 0;
+	struct node *p = pStart;
+
+	for (; NULL != p->next; p = p->next)
+	{
+		if (p->data == data)
+		{
+			return idx;
+		}
+
+		idx++;
+	}
+
+	return -1;
+}
+
 

C-RK/C-RK-Week2/llist.h

@@ -13,5 +13,6 @@ int add(int data, int begin);
 int addPos(int data, int positie);
 void show();
 void clear();
-
+int length();
+int exists(int data);
 #endif

C-RK/C-RK-Week2/main.c

@@ -42,6 +42,10 @@ int main()
 	printf("Showing data...\n");
 	show();
 
+	printf("Length of list: %d\n", length());
+	printf("Position of 22 in list: %d\n", exists(22));
+	printf("Position of 40 in list: %d\n", exists(40));
+
 	printf("Clearing data...\n");
 	clear();