Robert Ryan wrote:
> I put a brace at the while loop and took out the int at keep_window_open();
> but I have this error at catch
>
> #include<iostream>
> using namespace std;
> expression();
> keep_window_open();
> int main()
> try {
> while (cin) {
> cout << expression() << '\n';
> keep_window_open();
> }
> catch (runtime_error& e) {
> cerr << e.what() << endl;
> keep_window_open();
> return 1;
> }
> catch (...) {
> cerr << "exception \n";
> keep_window_open();
> return 2;
> }
>
>
> .cpp: In function `int main()':
> .cpp:11: parse error before `catch'
I'm beginning to think that you are learning C++ by trial-and-error.
Learning C/C++ using a trial-and-error approach is considered by those
who know this industry to be the worst way to 'learn' C/C++. You most
likely won't learn anything and will generally get frustrated and give up.
Learning from a book is the best way to go.
When you joined c-prog, you should have received an e-mail containing
the group welcome message. In that message was a list of books that you
should read. Just in case you missed the message, here is that list of
books again and the order in which you should be reading them:
"Accelerated C++" by Koenig and Moo (ISBN #020170353X)
"Safe C++ Design Principles" by Thomas Hruska
"The C++ Standard Library" by Nicolai Josuttis (ISBN #0201379260)
"Effective C++" by Scott Meyers (ISBN #0201924889)
"More Effective C++" by Scott Meyers (ISBN #020163371X)
If you are learning or looking to learn C, consider learning C++
instead. It is much more versatile and offers powerful features that C
doesn't offer. If you happen to be already reading something other than
the books above, seriously consider supplementing or replacing your book
with the above.
If you can't afford the books mentioned, Bruce Eckel offers "Thinking in
C++" for free from his website:
http://mindview.net/Books/TICPP/ThinkingInCPP2e.html
And the group owner, Thomas Hruska, has generously donated his book
"Safe C++ Design Principles" to c-prog group members for free:
http://tech.groups.yahoo.com/group/c-prog/files/Books/
Beware any C/C++ author who does not adhere closely to the ANSI C/C++
Standard. One very popular author is Yashavant Kanetkar who is the
author of "Let Us C". His writing may be simple to understand however
his code is non-ANSI Standard. Similar great writers have shown up over
the years who tell wonderful stories but don't adhere to the Standards
defined by the ANSI C/C++ committees.
You should also obtain at least copy of a draft copy of the ANSI C/C++
Standard. Draft copies are free and c-prog links to quite a few of them
here:
http://tech.groups.yahoo.com/group/c-prog/links/Standards_001012496381/
--
Thomas Hruska
CubicleSoft President
Ph: 517-803-4197
*NEW* MyTaskFocus 1.1
Get on task. Stay on task.
http://www.CubicleSoft.com/MyTaskFocus/
