C - structs and unions, C++ classes and polymorphism

C's structs allow you to define a variable type in which you can hold a variety of elements by name ... and that's very similar to how you define all the variables within a C++ class. In a C++ class, though, you also define your methods which take that language forward into the Object Oriented world.

C's unions let you define a block of memory which has two (or more) names associated with it so that - when combined with structs - you can produce a whole family of defined variable types based on a common core, but then varying in parts where appropriate. In OO terms, that's starting to head towards C++'s inheritance and polymorphism ...
(written 2008-03-13, updated 2008-03-18)

Associated topics are indexed under

C209 - C and C based languages - Structures and Unions
  [3386] Adding the pieces together to make a complete language - C - (2011-08-11)
  [3145] Structures v Structure Pointers in C. How, which, why. - (2011-01-25)
  [3122] When is a program complete? - (2011-01-06)
  [2573] C Structs - what, how and why - (2010-01-13)
  [1669] What are Unions (C programming) - (2008-06-08)
  [1584] Using Structs and Unions together effectively in C - (2008-03-21)
  [1478] Some new C programming examples - files, structs, unions etc - (2007-12-19)

C233 - C and C based languages - OO in C++ - beyond the basics
  [3979] Extended and Associated objects - what is the difference - C++ example - (2013-01-18)
  [3811] Associated Classes - using objects of one class within another - (2012-07-21)
  [3508] Destructor methods in C++ - a primer - (2011-11-05)
  [3251] C++ - objects that are based on other objects, saving coding and adding robustness - (2011-04-17)
  [3244] C and C++ - preprocess, compile, load, run - what each step is for - (2011-04-12)
  [3142] Private and Public - and things between - (2011-01-22)
  [3124] C++ - putting the language elements together into a program - (2011-01-08)
  [3123] C++ objects - some short, single file demonstrations - (2011-01-07)
  [3056] C++ - a complete example with polymorphism, and how to split it into project files - (2010-11-16)
  [2845] Objects and Inheritance in C++ - an easy start - (2010-07-01)
  [2577] Complete teaching example - C++, inheritance, polymorphism - (2010-01-15)
  [1819] Calling base class constructors - (2008-10-03)
  [1674] What a lot of files! (C++ / Polymorphism demo) - (2008-06-12)
  [1217] What are factory and singleton classes? - (2007-06-04)
  [925] C++ - just beyond the basics. More you can do - (2006-11-14)
  [831] Comparison of Object Oriented Philosophy - Python, Java, C++, Perl - (2006-08-13)
  [801] Simple polymorphism example - C++ - (2006-07-14)
  [798] References and Pointers in C++ - (2006-07-10)

2e9e

Back to
Await guests in the early hours

Previous and next
or
Horse's mouth home

Forward to
Budget tax increases hit vehicle market

Some other Articles

Making PHP and MySQL training relevant to the course delegates
Database design for a shopping application (MySQL)
Joining MySQL tables revisited - finding nonmatching records, etc
Budget tax increases hit vehicle market
C - structs and unions, C++ classes and polymorphism
Await guests in the early hours
London Midland ... Merrymaker ... Percy Danks
I dont care - goodbye
What colour is the season?
Melksham - Swindon. Train v Bus v Car

4088 posts, page by page

Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82 at 50 posts per page

This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

Public Training Courses

Running regularly at our UK training Centre.
[Schedule] - [About] - [Book]

Like this? ??