C and C based languages - Structures and Unions

Structures and Unions - C and C based languages module C209

Data doesn't come neatly packaged in a series of similar (homogenous) elements - instead, if you have a number of different attributes of a thing (or object), each of them may be of a different type (i.e. heterogenous). C's structs allow you to define your own data types as composites of other data types, with each individual member having a name and characteristics suitable to its particular data and function.

This topic is presented on public courses Programming in C, C and C++ Programming

Examples from our training material

mytrains.c	Use of pointer to a structure
st1.c	Definition and first use of a structure
trains.c	An array of structures
tud.c	A Union within a struct - practical use demonstration
union.c	Example of a Union in C

Opentalk forum discussions related to this topic

ENUM nbsp nested within a struct defined within C

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Combining data into structures.
Creating your own data types.
Programming techniques for structures.
Overlapping data within unions.

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