Too fast to test!

**Lurker** · 03-04-2003

I compiled this with the Digital Mars compiler:

Code:

#include <iostream.h>

int main()

{

  cout<<"HEY, you, I'm alive!  Oh, and Hello World!";

  return 0;    

}

And it compiles perfectly, however, when I run the test.exe program, it opens command prompt and closes it before I can see the results! Also, what are the .map and .obj files it creates? Can I delete those without error? Any help appreciated, thanks!

**abrege** · 03-04-2003

Theres nothing that keeps it open. Try this..

Code:

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
     cout << "Hello world yadda yadda yadda";
     getch();

     return 0;
}

**Prelude** · 03-05-2003

>getch();
Why does everyone insist on using a nonportable construct for something so simple?

Code:

#include <iostream>

int main()
{
  std::cout<<"Hello, world!"<<std::endl;

  std::cout<<"Press return to continue"<<std::flush;
  std::cin.get();
}

You do realize that when the computer asks for any key to be pressed, the most common action is to hit return? In that case the effect of getch taking anything is wasted, so it would be better to lose a little flexibility that isn't often used and improve portability.

-Prelude

**Hammer** · 03-05-2003

For future reference, check this for answers to common questions.

**gamer** · 03-05-2003

i use dev-c++

i don't know if it works with other compilers
so heres the code

PHP Code:


system ("pause");

**Prelude** · 03-05-2003

>i don't know if it works with other compilers
It depends on whether or not "pause" is a system command for that machine.

-Prelude

**Yawgmoth** · 03-05-2003

Originally posted by gamer
i use dev-c++

i don't know if it works with other compilers
so heres the code

PHP Code:

system ("pause");

You have to #include <stdlib.h> too.

**Prelude** · 03-05-2003

>You have to #include <stdlib.h> too.
You mean <cstdlib>, <stdlib.h> isn't a C++ header.

-Prelude

**Yawgmoth** · 03-05-2003

I'm pretty sure it's <stdlib.h>. Unless I've been using a non C++ header in all my C++ programs.

**sonict** · 03-05-2003

This is easy.

Code:

#include <iostream.h>

int main()

{

  cout<<"HEY, you, I'm alive!  Oh, and Hello World!";
// i added line below
cin >> hold;
  return 0;    

}

Add a cin>>hold; above return 0; and that should do it.

**Prelude** · 03-05-2003

>Unless I've been using a non C++ header in all my C++ programs.
You have. Many implementations support the C headers since that is what C++ used to use. However, those headers are now no longer part of the language proper.

>Add a cin>>hold; above return 0; and that should do it.
Where do you define hold, and why do you even need a variable? See my first post on this thread.

-Prelude

**Yawgmoth** · 03-05-2003

No longer part of the language proper? Does that mean they're like void main()?

**Cobras2** · 03-05-2003

void main() never was part of the language afaik, nor was it part of C;
with regards to <stdlib.h> that was C, but it is only included in C++ for backwards-compatibility. (I believe?)

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