Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

"raise" and "exception" ...

Posted on 2003-10-27
4
Medium Priority
?
205 Views
Last Modified: 2010-04-02
To C++ Experts,

   How is "raise" to do with "exceptions" ? can I have an example ?
 thanks.

 
0
Comment
Question by:meow00
[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
  • 3
4 Comments
 
LVL 19

Assisted Solution

by:Dexstar
Dexstar earned 200 total points
ID: 9630552
meow00:

> How is "raise" to do with "exceptions" ? can I have an example ?

In C++, you don't "raise" exceptions.  You "throw" them.

     void SomeFunction()
     {
          try
          {
               int i = 5;

               if ( i < 5 )
                    throw i;
          }
          catch( int n )
          {
               cout << "Caught int Exception: " << n << endl;
          }
     }

Does that make it more clear?

Hope that helps,
Dex*
0
 
LVL 1

Author Comment

by:meow00
ID: 9630610
I see .... so what does raise do :
In the book (C++ in a nutshell): "The raise function sends a signal to the running program." But I don't really understand what it means ......
thanks.
0
 
LVL 19

Accepted Solution

by:
Dexstar earned 200 total points
ID: 9630633
meow00:

> I see .... so what does raise do :
> In the book (C++ in a nutshell): "The raise function sends a signal to the
> running program." But I don't really understand what it means ......

I've been programming in C/C++ since 1992 or so, and I've never used that function.  So, I looked it up and found this:
     http://www.qnx.com/developer/docs/qnx_6.1_docs/neutrino/lib_ref/r/raise.html

Which will give you a sample of its usage.
But, in general, that is the "old sk00l" way of doing it.  With C++, you have exceptions, and so the signal()/raise() functions are pretty much obsolete.

Dex*
0
 
LVL 19

Expert Comment

by:Dexstar
ID: 9634621
meow00:

I'm glad that you accept my answers, but I'm sure it isn't necessary to split the points between my 2 answers, since they all go to the same person.  You should save that for when you want to split the points between two different people.  :)

Dex*
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
What is C++ STL?: STL stands for Standard Template Library and is a part of standard C++ libraries. It contains many useful data structures (containers) and algorithms, which can spare you a lot of the time. Today we will look at the STL Vector. …
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.
Suggested Courses

604 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