| |
|
|
|
Details about bugs in example programs in
.NET Architecture and Programming Using Visual C++
Customer id does not increment
properly in some of the example program
There is bug that causes the customer id to not increment properly in some
of the example programs. This bug is found in each of the following source
files:
C:\OI\NetCpp\Chap06\Components\Customer\Customer.h
C:\OI\NetCpp\Chap07\CaseStudy\Customer\Customer.h
C:\OI\NetCpp\Chap08\Asynch\Customer\Customer.h
C:\OI\NetCpp\Chap08\Dynamic\Customer\Customer.h
C:\OI\NetCpp\Chap08\Reflection\Customer\Customer.h
The bug is that the following member in the Customer class should be static,
and initialized to 1:
int nextCustId;
This should be changed to:
static int nextCustId = 1;
Also, the three Customer class constructors should not initialize the
nextCustId to 1. Thus, the following:
Customer(String *first, String *last, String *email)
: nextCustId(1)
{
CustomerId = nextCustId++;
FirstName = first;
LastName = last;
EmailAddress = email;
}
Customer() : nextCustId(1)
{
}
Customer(int id) : nextCustId(1)
{
CustomerId = id;
FirstName = "";
LastName = "";
EmailAddress = "";
}
Should be changed to:
Customer(String *first, String *last, String *email)
{
CustomerId = nextCustId++;
FirstName = first;
LastName = last;
EmailAddress = email;
}
Customer()
{
}
Customer(int id)
{
CustomerId = id;
FirstName = "";
LastName = "";
EmailAddress = "";
}
|
|
Copyright © 2004 • Object Innovations, Inc.
|
|
