dev-cpp-users

[Dev-C++] why does this happen?

[feng yu <yu...@ya...>]

Hi,
 
I began using Dev C++ compiler a few days ago. Below is a problem I met.
 
I write a very simple program as the following:
 

#include <iostream>
using namespace std;
int main()
{
    int numberOfLanguages;
    cout<<"Hello reader.\n"
        <<"Welcome to C++.\n";
        
    cout<<"How many programing languages have you used?";
    cin>>numberOfLanguages;
    
    if (numberOfLanguages<1)
        cout<<"Read the preface. You may prefer\n"
                <<"a more elementary book by the same author.\n";
    
    else
        cout<<"Enjoy the book.\n";
    
    return 0;
}
 
There is no problem in compilation but when I execute the program, and input a number for "numberOfLanguages", the pop-up screen disappears. I mean all the interactive information I got when executing the program disappears unexpectedly. But there is no such problem when I use Microsoft Visual C++ 6.0. 
 
I appreciate your patient help.
 
A programming beginner



		
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RE: [Dev-C++] why does this happen?

[<jto...@ut...>]

just write a system "pause"; sentence before return 0, or execute the
program from a Command Window, so you will see the output after the =
program
termination.
=20
Best,
=20
Jes=FAs

  _____ =20

De: dev...@li...
[mailto:dev...@li...] En nombre de feng yu
Enviado el: Lunes, 19 de Julio de 2004 9:09
Para: dev...@li...
Asunto: [Dev-C++] why does this happen?


Hi,
=20
I began using Dev C++ compiler a few days ago. Below is a problem I met.
=20
I write a very simple program as the following:
=20
#include <iostream>
using namespace std;
int main()
{
    int numberOfLanguages;
    cout<<"Hello reader.\n"
        <<"Welcome to C++.\n";
       =20
    cout<<"How many programing languages have you used?";
    cin>>numberOfLanguages;
   =20
    if (numberOfLanguages<1)
        cout<<"Read the preface. You may prefer\n"
                <<"a more elementary book by the same author.\n";
   =20
    else
        cout<<"Enjoy the book.\n";
   =20
    return 0;
}
=20
There is no problem in compilation but when I execute the program, and =
input
a number for "numberOfLanguages", the pop-up screen disappears. I mean =
all
the interactive information I got when executing the program disappears
unexpectedly. But there is no such problem when I use Microsoft Visual =
C++
6.0.=20
=20
I appreciate your patient help.
=20
A programming beginner


  _____ =20

Do you Yahoo!?
Vote for the  =
<http://advision.webevents.yahoo.com/yahoo/votelifeengine/>
stars of Yahoo!'s next ad campaign!

RE: [Dev-C++] why does this happen?

[Todd G. <pi...@ea...>]

Hello,

It seems that this response from Paul <pa...@al...> in the
"alt.comp.lang.learn.c++" may be applicable to the issue of the console
window automatically closing.  Another place the suggestion below is shown
is in the auto generated hello world from dev-cpp for Windows.

<begin forward from pa...@al...>
<snip>

Right. cin.get() would be better to use as not all systems implement
either system("pause") or implement it in the same way. The point of C++
is that it *is* platform independent - irrespective of what vendors say!

<snip>

> using namespace std;
>
> int main (int argc, char *argv[])
> {
>   cout << "Hello World!" << endl;
>   cout << "Press ENTER to continue..." << endl; cin.get(); return 0;
> }

With the exception of incorrect header, the only other point on that code
is that it would have been better to have using cin and using endl rather
than including the whole std namespace.

TTFN

Paul

--
"There are four stages to any war
First they ignore you, then they laugh at you
Then they fight you, then YOU win."
Ghandi

Todd