Thread: C to C++ transition

This may have already been done before but here is a basic idea of the transition between C++ and C.

C:

Code:

#include <stdio.h>
int main()
{
     printf("Hello, world!\n");
     return 0;
}

C++:

Code:

#include <iostream>
using std::cout;
using std::endl;
int main()
{
     cout << "Hello, world!" << endl;
     return 0;
}

I hope that answers some basic questions. When you are ready to learn more there is most obviously the rest of the board to browse through to find the help you need.

trainee

I suggest you learn before you teach. Your C example is completely undefined and even if it does work, the two examples do not result in the same output. Your C++ example at least conforms to the C++ standard though, kudos for that.

The idea of this post being....? To remind us of why we're here?

Originally posted by trainee
Did I fix it?

trainee

Depends on what standard you're conforming to.
http://faq.cprogramming.com/cgi-bin/...&id=1043284376

[edit]
Please don't start another main() usage convo, they tend to go on for ages without actually going anywhere

>Did I fix it?
Close enough, though most of us would prefer that you use

Code:

int main ( void )

>Thanks for the suggestions
We're always happy to propvide constructive criticism. Let me be the first (I believe at least) to welcome you to our happy little community.

Welcome trainee, I was new here not long ago too.

One piece of advice though, we generally answer questions when asked and don't spontaneously answer random questions. It's cool though.

One other thing, C++ standard doesn't require "return 0;" at the end of main, but a lot of compilers still do.

Originally posted by trainee
C++ standard doesn't require return 0;? Wow, that's news to me. Where did you hear this man?

trainee

In the standard!

[edit]
And yeah, the FAQ too.

int main()

You don't need void in C++ either.