Hash Table - Using Hash Table Classes

This example application demonstrates some uses of the Hash Table APIs of the User Library component

Hash table is used to construct the following:

The example also demonstrates performing different operations on these hash sets/maps, such as, inserting, finding, iterating, and removing items. A set implements an unordered extensional set of objects and a map implements an associative array with key and value type using probe sequence hash table.

The overview contains the following sections:

Download

Click on the following link to download the example: HashTableExample.zip

Click: browse to view the example code.

Description

Hash set

The application constructs a hash set by using the default hash and identity function for integers and descriptors using the RHashSet template class, and constructs another hash set by providing a defined custom hash and identity functions.

The application applies the following operations to the hash set:

Related APIs

Hash set of pointers

The application constructs a hash set of pointers using the default hash and identity function for integers and descriptors using the RPtrHashSet template class, and constructs another hash set of pointers by providing a defined custom hash and identity functions.

The application applies the following operations to the hash set of pointers:

Related APIs

Hash map

The application constructs a hash map using the default hash and identity function for integers and descriptors using the RHashMap template class, and constructs another hash map by providing a defined custom hash and identity functions.

The application applies the following operations to the hash map:

Hash map of pointers

The application constructs a hash map of pointers using the default hash and identity function for integers and descriptors using the RPtrHashMap template class, and constructs another hash map of pointers by providing a defined custom hash and identity functions.

The application applies the following operations to the hash map of pointers:

Related APIs

Class summary

Build

The Symbian build process describes how to build an application.

The HashTableExample builds an executable called hashtableexample.exe in the standard location (\epoc32\release\winscw\<build_variant> for CodeWarrior). After launching the executable, depending on the emulator you are using, you may need to navigate away from the application launcher/shell screen to view the console.