programming-for-dummies

536
Data Structures
Creating a structure
A structure is a variable that typically holds two or more variables. To create
a structure, use the struct keyword as follows:
struct name {
datatype variable;
};
The name of a structure can be any descriptive name, such as baseball_
team or sales_dept. Inside a structure, you must declare one or more
variables. A typical structure might look like this:
struct MyGrades {
char grade;
int class_number;
};
After defining a structure, you can declare a variable to represent that structure,
such as
struct MyGrades chemistry;
As a shortcut, you can define a structure and declare a variable to represent
that structure as follows:
struct MyGrades {
char grade;
int class_number;
} chemistry;
Creating enumerated variables
Enumerated variables act like a list that lets you name a group of items, such
as the days of the week, names of people in a group, and so on. A typical
enumerated variable list might look like this:
enum name {item1, item2, item3};
So if you wanted to define the names of the days in a work week, you could
do the following:
enum weekend {saturday, sunday};