dev-cpp-users

[Dev-C++] why does window close after execution? newbie

[Graham <sai...@bi...>]

I have installed Dev-C under Win XP Pro 
and am running the traditional "Hello World" as the first exercise in my tutorial.
When it is compiled and run it instantly closes the window after printing to the screen.   I therefore cant see the output.
Is there a way to change this with a setting of DEV-C or will I have to put up with adding some sort of pause statement at the end of everything I write?

my code looks like this
/* 
*Hello, "Hello World.\n"
*/
#include <iostream>
int main ()
{
    cout<<"Hello, world.\n";
return 0;
}

regards 
Graham (on L Plates)

Re: [Dev-C++] why does window close after execution? newbie

[<or...@vp...>]

Graham wrote:

> I have installed Dev-C under Win XP Pro
> and am running the traditional "Hello World" as the first exercise in my 
> tutorial.
> When it is compiled and run it instantly closes the window after 
> printing to the screen.   I therefore cant see the output.
> Is there a way to change this with a setting of DEV-C or will I have to 
> put up with adding some sort of pause statement at the end of everything 
> I write?
>  
> my code looks like this
> /*
> *Hello, "Hello World.\n"
> */
> #include <iostream>
> int main ()
> {
>     cout<<"Hello, world.\n";
> return 0;
> }

This is indeed a VVVVVFAQ (very-very-very-very-...).
BTW this is absolutely NORMAL behaviour. To make the dos-prompt stay, 
you need to pause your program at the end. Use this line before return:

getc();

This will wait for an "Enter".
(I don't like system("PAUSE"), as that is platform-dependent).

--
Greetings,
   Balázs

Re: [Dev-C++] why does window close after execution? newbie

[Graham <sai...@bi...>]

woops .. obviously a newbie ...
I replied under the wrong subject
here it is with right subject header

I did look at the FAQ
this is where I found the Pause suggestion
my question was
can I prevent the window closing with a setting in DEV-C
When I was learning other languages and using JGrasp for instance it could
be set to not close the window so that the output could be viewed.   This
was not done by code added on the end each time but was done by a setting in
JGrasp ... I was hoping it was possible to change a setting in DEV-C to
achieve this.
I could not find an answer in the FAQ and wondered if anyone here could
assist.
Please forgive me if this is not the correct forum for such a question.

regards
Graham

----- Original Message ----- 
From: "OROSZI Balázs" <or...@vp...>
To: <dev...@li...>
Sent: Friday, August 01, 2003 9:01 PM
Subject: Re: [Dev-C++] why does window close after execution? newbie


Graham wrote:

> I have installed Dev-C under Win XP Pro
> and am running the traditional "Hello World" as the first exercise in my
> tutorial.
> When it is compiled and run it instantly closes the window after
> printing to the screen.   I therefore cant see the output.
> Is there a way to change this with a setting of DEV-C or will I have to
> put up with adding some sort of pause statement at the end of everything
> I write?
>
> my code looks like this
> /*
> *Hello, "Hello World.\n"
> */
> #include <iostream>
> int main ()
> {
>     cout<<"Hello, world.\n";
> return 0;
> }

This is indeed a VVVVVFAQ (very-very-very-very-...).
BTW this is absolutely NORMAL behaviour. To make the dos-prompt stay,
you need to pause your program at the end. Use this line before return:

getc();

This will wait for an "Enter".
(I don't like system("PAUSE"), as that is platform-dependent).

--
Greetings,
   Balázs



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Re: [Dev-C++] why does window close after execution? newbie

[Richard C. <tel...@ya...>]

heck he's programming for DOS, let him use system("PAUSE").=20
it goes against the very nature of programming to get() or cin or scanf e=
tc when you dont want to!
i mean, sure it does the trick, but it doesnt 'wait for an 'enter'' it wa=
its to read in the next character or string or whatever.

i dunno, i'm being pedantic i know. ;)

but how many other platform have console windows which open and close lik=
e they do in windows??


1/08/03 9:31:46 PM, OROSZI Bal=E1zs <or...@vp...> wrote:

>Graham wrote:
>
>> I have installed Dev-C under Win XP Pro
>> and am running the traditional "Hello World" as the first exercise in =
my=20
>> tutorial.
>> When it is compiled and run it instantly closes the window after=20
>> printing to the screen.   I therefore cant see the output.
>> Is there a way to change this with a setting of DEV-C or will I have t=
o=20
>> put up with adding some sort of pause statement at the end of everythi=
ng=20
>> I write?
>> =20
>> my code looks like this
>> /*
>> *Hello, "Hello World.\n"
>> */
>> #include <iostream>
>> int main ()
>> {
>>     cout<<"Hello, world.\n";
>> return 0;
>> }
>
>This is indeed a VVVVVFAQ (very-very-very-very-...).
>BTW this is absolutely NORMAL behaviour. To make the dos-prompt stay,=20
>you need to pause your program at the end. Use this line before return:
>
>getc();
>
>This will wait for an "Enter".
>(I don't like system("PAUSE"), as that is platform-dependent).
>
>--
>Greetings,
>   Bal=E1zs
>
>
>
>-------------------------------------------------------
>This SF.Net email sponsored by: Free pre-built ASP.NET sites including
>Data Reports, E-commerce, Portals, and Forums are available now.
>Download today and enter to win an XBOX or Visual Studio .NET.
>http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01=
/01
>_______________________________________________
>Dev-cpp-users mailing list
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>

Re: [Dev-C++] why does window close after execution? newbie

[Graham <sai...@bi...>]

The debate about which piece of code to use to stop the window from closing
is very interesting and educational and I thank all contributors
BUT
My question is can it be done without adding code.
The problem only occurs when I compile and run in DEV-C
When I take the work in to uni, they run it on grasp or something else where
this problem doesnt occur.
SO
My Question Is
is the not a setting in DEV-C that will make it keep the window open??
eg this is a DEV-C question  not a C programming question

thanking all for your assistance

Graham

----- Original Message ----- 
From: "Richard Chiu" <tel...@ya...>
To: <dev...@li...>
Sent: Saturday, August 02, 2003 11:45 AM
Subject: Re: [Dev-C++] why does window close after execution? newbie


heck he's programming for DOS, let him use system("PAUSE").
it goes against the very nature of programming to get() or cin or scanf etc
when you dont want to!
i mean, sure it does the trick, but it doesnt 'wait for an 'enter'' it waits
to read in the next character or string or whatever.

i dunno, i'm being pedantic i know. ;)

but how many other platform have console windows which open and close like
they do in windows??


1/08/03 9:31:46 PM, OROSZI Balázs <or...@vp...> wrote:

>Graham wrote:
>
>> I have installed Dev-C under Win XP Pro
>> and am running the traditional "Hello World" as the first exercise in my
>> tutorial.
>> When it is compiled and run it instantly closes the window after
>> printing to the screen.   I therefore cant see the output.
>> Is there a way to change this with a setting of DEV-C or will I have to
>> put up with adding some sort of pause statement at the end of everything
>> I write?
>>
>> my code looks like this
>> /*
>> *Hello, "Hello World.\n"
>> */
>> #include <iostream>
>> int main ()
>> {
>>     cout<<"Hello, world.\n";
>> return 0;
>> }
>
>This is indeed a VVVVVFAQ (very-very-very-very-...).
>BTW this is absolutely NORMAL behaviour. To make the dos-prompt stay,
>you need to pause your program at the end. Use this line before return:
>
>getc();
>
>This will wait for an "Enter".
>(I don't like system("PAUSE"), as that is platform-dependent).
>
>--
>Greetings,
>   Balázs
>
>
>
>-------------------------------------------------------
>This SF.Net email sponsored by: Free pre-built ASP.NET sites including
>Data Reports, E-commerce, Portals, and Forums are available now.
>Download today and enter to win an XBOX or Visual Studio .NET.
>http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
>https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>





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Re: [Dev-C++] why does window close after execution? newbie

[Daniel K. O. <dan...@ya...>]

Graham wrote:

>My Question Is
>is the not a setting in DEV-C that will make it keep the window open??
>eg this is a DEV-C question  not a C programming question
>
>  
>

1) Go to Tools menu -> Configure tools
2) Click the Add button
3) Type:
    Title:    Run in a DOS box
    Program:    c:\windows\command.com
    Working directory:   <PROJECTPATH>
    Parameters:   /K <EXENAME>

4) Every time you want to run it, go to Tools -> Run in a DOS box.




Daniel K. O.

Re: [Dev-C++] why does window close after execution? newbie

[<or...@vp...>]

Richard Chiu wrote:
> heck he's programming for DOS, let him use system("PAUSE"). 
> it goes against the very nature of programming to get() or cin or scanf etc when you dont want to!
> i mean, sure it does the trick, but it doesnt 'wait for an 'enter'' it waits to read in the next character or string or whatever.

Yes, but because of buffering, it will only return, when you press an 
'enter'. And actually, I was wrong, it is getchar().

--
Greetings,
   Balázs