CSCI 152 Simple Structures
// GLOBAL TYPE DECLARATIONS
1 struct Date
2 {
3 int month;
4 int day;
5 int year;
6 };
7 struct Machine
8 {
9 int id;
10 bool serviceContract;
11 float failRate;
12 int downDays;
13 float cost,
14 deprValue;
15 };
// LOCAL VARIABLE DECLARATIONS
16 Date yesterday;
17 Date today = { 3, 2, 2004 }; // compile-time initialization
18 Machine press;
19 Machine station [100];
The following statements demonstrate references to fields (fully qualified names must be
used for all field identifiers). You can do anything with a field that you can do with a
single variable of the same type.
20 cout << "Date: " << today.month << "/"
<< today.day << "/"
<< today.year << endl;
21 cout << "Machine # " << press.id << endl;
22 cout << "Original cost = $" << setiosflags(ios::showpoint)
<< setprecision(2) << press.cost << endl;
23 cout << "Depreciation value = $" << press.deprValue << endl;
24 cout << "# down days since purchase = " << press.downDays << endl;
25 if (press.failRate > MAX_FAIL_RATE)
26 cout << "Excessive downtime\n";
27 if (press.serviceContract == false) // or if(!press.serviceContract )
28 cout << "Service contract has expired\n";
The only defined operations for structure variables (the entire structure) of the same
type are:
assignment
pass as a parameter to a function (either by value or by reference)
return by a function
29 yesterday = today;
is equivalent to these three statements:
30 // yesterday.month = today.month;
31 // yesterday.day = today.day;
32 // yesterday.year = today.year;
