A Simple Question (I think)

This is a discussion on A Simple Question (I think) within the C Programming forums, part of the General Programming Boards category; Hey, I'm learning C Programming at Uni and was given the following code to compile and try the program... Code: ...

  1. #1
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    Smile A Simple Question (I think)

    Hey,
    I'm learning C Programming at Uni and was given the following code to compile and try the program...

    Code:
    #include <stdio.h>									
    main()															
    {							
    
    int pets;							
    int cats;	
    int dogs;	
    
    printf("\a How many pets do you have?\n");				
    scanf("%d", &pets);							
    printf("So, you have %d pets! How many of these are cats?\n", pets);	scanf("%d", &cats);	
    printf("and how many dogs?\n", dogs);
    scanf("%d", &dogs);	
    printf("So, you have %d pets of which %d are cats and %d dogs!\n", pets, cats, dogs);
    
    return 0;
    
    }
    Can someone explain why the window is closing before the final line is printed and how I stop this?

    Thank you for your time,
    Scott

  2. #2
    Kernel hacker
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    I'd bet that it does print the final line, but it's so shortly before it closes the window that you don't see it.

    From the FAQ:
    Stop my Windows Console from disappearing everytime I run my program?

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  3. #3
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    that makes sence, thank you very much for pointing out the article

    so I'm guessing it would just be easiest to repeat
    Code:
    scanf("%d", &dogs);
    after the last print so it thinks its waiting for another input?

    thank you very much for your help, it's appreciated!

    Scott

  4. #4
    Kernel hacker
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    Quote Originally Posted by slawrence10 View Post
    that makes sence, thank you very much for pointing out the article

    so I'm guessing it would just be easiest to repeat
    Code:
    scanf("%d", &dogs);
    after the last print so it thinks its waiting for another input?

    thank you very much for your help, it's appreciated!

    Scott
    Yes, that would work - it's a bit excessive, but it'll do the job.

    I'm so old that I'm used to running things from a command window rather than just clicking things in the IDE, so I usually just let the progra finish, but since I'm already in a command window, the text remains - I just get a C:\somedir> at the bottom of the screen.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  5. #5
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    ah great, just tried that, so no code changing needed, even better

    thanks again for your help!

    Scott

  6. #6
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    or you can put these at the end of your code right before the return command of the main function:
    Code:
    fflush(stdin);
    getchar();
    so the program waits for an additional ENTER at the end to close

  7. #7
    HelpingYouHelpUsHelpUsAll
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    In windows, system("PAUSE"); expects any key for the program to continue. This also automatically inserts the text (on a new line): Press any key to continue . . .
    long time no C; //seige
    You miss 100% of the people you don't C;
    Code:
    if (language != LANG_C && language != LANG_CPP)
        drown(language);

  8. #8
    a_capitalist_story
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    Never use fflush(stdin), its behavior is undefined.

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