New Core Tutorial

git-svn-id: svn://ultimatepp.org/upp/trunk@10538 f0d560ea-af0d-0410-9eb7-867de7ffcac7

tutorial/CoreTutorial/IndexClient.cpp

@@ -0,0 +1,31 @@
+#include "Tutorial.h"
+
+void IndexClient()
+{
+	/// .Index and client types
+
+	/// In order to store elements to `Index`, they type must be `Moveable`, have deep copy and
+	/// defined the `operator==` and a `GetHashValue` function or method to compute the hash
+	/// code. It is recommended to use `CombineHash` to combine hash values of types that
+	/// already provide `GetHashValue`:
+
+	struct Person : Moveable<Person> {
+		String name;
+		String surname;
+	
+		unsigned GetHashValue() const          { return CombineHash(name, surname); }
+		bool operator==(const Person& b) const { return name == b.name && surname == b.surname; }
+	
+		Person(String name, String surname) : name(name), surname(surname) {}
+		Person() {}
+	};
+
+	Index<Person> p;
+	p.Add(Person("John", "Smith"));
+	p.Add(Person("Paul", "Carpenter"));
+	p.Add(Person("Carl", "Engles"));
+
+	DUMP(p.Find(Person("Paul", "Carpenter")));
+	
+	///
+}