Beginning Programming With C for Dummies by Dan Gookin

Author:Dan Gookin
Language: eng
Format: mobi
Tags: Computers, Programming, General
ISBN: 9781118737620
Publisher: For Dummies
Published: 2013-10-10T04:00:00+00:00

Understanding struct

A structure isn’t a variable type. Instead, think of it as a frame that holds multiple variable types. In many ways, a structure is similar to a record in a database. For example:

These three items can be fields in a database record, but they can also be members in a structure: Namewould be a string; Age, an integer; and Gambling Debt, an unsigned floating-point value. Here’s how such a record would look as a structure in C:

structis a C language keyword that introduces a structure. Or you can look at it as defining or creating a new structure.

recordis the name of the new structure being created. It’s not a variable — it’s a structure type.

Within the curly brackets dwell the structure’s members, the variables contained in the named structure. The recordstructure type contains three member variables: a string name, an intnamed age, and a floatvalue, debt.

To use the structure, you must declare a structure variable of the structure type you created. For instance:

struct record human;

This line declares a new variable of the record structure type. The new variable is named human.

Structure variables can also be declared when you define the structure itself. For example:

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.