Code::Blocks Forums

User forums => Using Code::Blocks => Topic started by: kaiserniz on August 18, 2006, 08:48:24 am

Title: Result window does not stay
Post by: kaiserniz on August 18, 2006, 08:48:24 am
Hi all, I'm completely new to programming, and am facing this problem on day 1. I typed in this code from a book:

#include <stdio.h>
#include <math.h>

int main(void)
{
    double x1=1, y1=5, x2=4, y2=7,
    side_1, side_2, distance;
    side_1=x2-x1;
    side_2=y2-y1;
    distance=sqrt(side_1*side_1 + side_2*side_2);
    printf("The distance between the two points is "
    "%5.2f \n",distance);
    return 0;
}

I saved the file and ran the exe, and the result window just kinda blinked away. How can I make it stay and display the result until I close the window?
Thanks in advance.
Title: Re: Result window does not stay
Post by: thomas on August 18, 2006, 10:25:20 am
If you mean this happens when you run the program from inside Code::Blocks, you need to enable the checkbox "Pause when execution ends" inside your project's properties. That will keep the console open until you hit a key.

If you mean that this generally happens when you run the program by double-clicking, then:
1. Please do note that we don't run a general programming forum here. This forum is about issues related to Code::Blocks. Please consult a general programming forum for questions like this.
2. It is perfectly normal behaviour. The program runs and exits after it is done, that's just what you programmed. If you want the program to pause when it is done, you must program this (for example by waiting for a key).
The "output window" is nothing but a DOS shell that's implicitely created. When it is no longer needed, it is closed.

A better approach than blocking the program is to open a DOS window first and run the program from there (by typing its name). The window will stay open after your program finishes, and your program does not block needlessly.
Under an operating system other than Windows (for example Linux), that's the only possibility anyway, since running a console program does not automatically open a shell window.

Title: Re: Result window does not stay
Post by: kaiserniz on August 18, 2006, 10:36:52 am
Thanks for answering. I got it.
Title: Re: Result window does not stay
Post by: EricKane on August 18, 2006, 10:53:47 am
other way,
You can insert code like below and include stdlib.h file:
Code
...
system("pause");
return 0;
For more info,please see about C standard library,function int system(const char *command);

By the way,I'm using windows system console(cmd),not cb_console_runner.

with regards
kane
Title: Re: Result window does not stay
Post by: PDEE on August 18, 2006, 01:13:03 pm
Re- System("pause");-- I got told it's a bad habit to have, i never use it now. Using cin.get(); is a much better way. Read this: http://www.gidnetwork.com/b-61.html (http://www.gidnetwork.com/b-61.html)

PDEE
Title: Re: Result window does not stay
Post by: EricKane on August 18, 2006, 02:02:19 pm
Quote
I got told it's a bad habit to have, i never use it now. Using cin.get(); is a much better way.

sorry.I'm too stupid.
Ask a question: if i use C not C++,how can i do it?please teach me
Title: Re: Result window does not stay
Post by: takeshimiya on August 18, 2006, 02:19:49 pm
Quote from: Kane.zZ on August 18, 2006, 02:02:19 pm
Quote
I got told it's a bad habit to have, i never use it now. Using cin.get(); is a much better way.

sorry.I'm too stupid.
Ask a question: if i use C not C++,how can i do it?please teach me
The linked pointed says an example: getchar()
Title: Re: Result window does not stay
Post by: PDEE on August 18, 2006, 02:25:44 pm
Maybe this will clear things up a bit better http://faq.cprogramming.com/cgi-bin/smartfaq.cgi?answer=1042856625&id=1043284385 (http://faq.cprogramming.com/cgi-bin/smartfaq.cgi?answer=1042856625&id=1043284385)

PDEE
Title: Re: Result window does not stay
Post by: PDEE on August 19, 2006, 01:46:33 am
Kane.Zz,
Please don't pm me telling me what i should and should not do. I told kaiserniz what i have been told many times and that was to not use the sytem to pause with. I never said i was a teacher, it was just some friendly advice that most people like to have to make sure they are doing things the right way. ME included. You asked me how to do it yourself then pm me not to give you a lecture.  :shock: If you are going to pm me please have the decency to let me reply to you instead of 'please don't reply to this as i have not the time to read it' People give advice out all over the place. if you can't take the advice, don't ask for it!!

PDEE

EDIT: I apologize mandrav and moderators, but i had to say that. Won't happen again.