Solved

Inserting into a set

Posted on 2002-06-19
5
226 Views
Last Modified: 2010-04-01
The following insert call produces a link error and I have no clue why.  Any suggestions?

extern set<My_Data> My_DataSet;

...

bool My_Data::AddRecord( char * trackingNumber, char * scanInfo )
{
     My_DataSet.insert(My_Data( trackingNumber, scanInfo ));//the link error is here
...
     return true;
}
0
Comment
Question by:mudface061200
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 4

Expert Comment

by:Chase707
ID: 7093984
What is the exact linker error that you are getting?

Chase707
0
 
LVL 5

Accepted Solution

by:
Jan Louwerens earned 100 total points
ID: 7094245
I'm guessing you don't have an operator= defined for your My_Data class. Since you are using an actual object rather than a pointer to an object (extern set<My_Data> My_DataSet;), when you stick an object into the set, the operator= function is used to copy the object (My_DataSet.insert(My_Data( trackingNumber, scanInfo ));)
0
 
LVL 5

Expert Comment

by:Jan Louwerens
ID: 7094247
try creating an operator= function and a copy constructor for the My_Data class
0
 
LVL 3

Expert Comment

by:MDarling
ID: 7095310
Is My_DataSet actually declared in a file in your project?

Your example simply shows it as declared somewhere externally.

0
 
LVL 1

Author Comment

by:mudface061200
ID: 7099516
It was actually a compiler issue, this was the first legitimate answer.  Thanks to all who made suggestions.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Errors will happen. It is a fact of life for the programmer. How and when errors are detected have a great impact on quality and cost of a product. It is better to detect errors at compile time, when possible and practical. Errors that make their wa…
Container Orchestration platforms empower organizations to scale their apps at an exceptional rate. This is the reason numerous innovation-driven companies are moving apps to an appropriated datacenter wide platform that empowers them to scale at a …
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question