Changes between Initial Version and Version 1 of code/doc/Iterator

Timestamp:

Feb 25, 2008, 1:17:58 AM (17 years ago)

Author:

landauf

Comment:

—

code/doc/Iterator

@@ +1 @@
+= Iterator =
+
+== Description ==
+
+The [wiki:Iterator] allows you to easily iterate through all objects in an [wiki:ObjectList]. An [wiki:ObjectList] stores all objects of a given class (and all derivatives). To start iterating, you need the first element in the [wiki:ObjectList]. This gets returned by !ObjectList<!ClassName>::begin().
+
+== Example ==
+
+The following example uses the class-tree below.
+
+{{{
+#!cpp
+new A1();
+new A1();
+new A1();
+
+new A3();
+new A3B1();
+new A3B1C1();
+
+int count = 0;
+for (Iterator<BaseObject> it = ObjectList<BaseObject>::begin(); it; ++it)
+  count++;
+std::cout << "BaseObject: " << count << std::endl;
+
+count = 0;
+for (Iterator<A1> it = ObjectList<A1>::begin(); it; ++it)
+  count++;
+std::cout << "A1:         " << count << std::endl;
+
+count = 0;
+for (Iterator<A3B1> it = ObjectList<A3B1>::begin(); it; ++it)
+  count++;
+std::cout << "A3B1:       " << count << std::endl;
+
+/*
+return:
+BaseObject: 6
+A1:         3
+A3B1:       2
+*/
+}}}
+
+[[Image(Core:testclass_tree.gif)]]