printf problem

This is a discussion on printf problem within the C Programming forums, part of the General Programming Boards category; Hello forum, I am new to C and programmin in general, but very interested! I am reading, "Absolute beginners guide ...

  1. #1
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    Arrow printf problem

    Hello forum,

    I am new to C and programmin in general, but very interested!

    I am reading, "Absolute beginners guide to C" by:Greg Parry. And towards the beginning of the book he gives a very simple "printf" example, just to display some words on screen, and I wrote this program in Dev bloodshed and the consol just flickered onscreen and then disappeared a milisecond later.

    Any help as to how I can make it stay on screen would be very helpful.

    Thank you

    servant of Pluto,

  2. #2
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    It's in the FAQ.

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    Thank you very much.

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    Forgive my inpertanence, but the FAQ didn't tell me what code to write to fix it.



    Any help on the subject would be appreciated.Thank you

    Servant of Pluto

  5. #5
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    I personally prefer the method of "run the application from an command prompt". But add something like "getchar();" near the end of your main() function.

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    please forgive my impertinence, but I did not understand te FAQ, what do I write?

    What command keeps the window open?

  7. #7
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    Quote Originally Posted by plutoismyhome View Post
    please forgive my impertinence, but I did not understand te FAQ, what do I write?

    What command keeps the window open?
    Start->Run...
    Enter the application name "cmd" (or "command" if you are using Windows 98/ME).

    You'll need to "cd" to the directory where your executable is, then you are "ready to go".

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    Compilers can produce warnings - make the compiler programmers happy: Use them!
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  8. #8
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    This is what i wrote but it still flashes!:
    Code:
     #include <stdio.h>
    main()
    getchar()
    {
          
          printf("this stuff is easy!\n");
          return 0;
    }

  9. #9
    Registered User ssharish2005's Avatar
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    Code:
    #include <stdio.h>
    
    int main()
    {
        printf("this stuff is easy!\n");
        getchar();
        return 0;
    }
    ssharish
    Last edited by ssharish2005; 09-18-2007 at 10:36 AM.

  10. #10
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    I'm not sure how you even got that to compile - but that besides, what are you doing to run the application?

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    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.

  11. #11
    and the hat of int overfl Salem's Avatar
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    What you wrote won't even compile.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  12. #12
    Dr Dipshi++ mike_g's Avatar
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    Just fixing a typo here
    Code:
    #include <stdio.h>
    
    int main()
    {
        printf("this stuff is easy!\n");
        getchar();
        return 0;
    }
    plutoismyhome: you need to put a semicolon ';' after the getchar().

  13. #13
    Registered User ssharish2005's Avatar
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    My bad, a semicolon missed.

    EDIT: Fixed

    ssharish

  14. #14
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    You can also do it this way:

    Code:
    #include <stdio.h>
    
    int main()
    {
        printf("this stuff is easy!\n");
        system("PAUSE");
        return 0;
    }

  15. #15
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    Quote Originally Posted by +Azazel+ View Post
    You can also do it this way:

    Code:
    #include <stdio.h>
    
    int main()
    {
        printf("this stuff is easy!\n");
        system("PAUSE");
        return 0;
    }
    getchar() is way more portable. Besides, calling the shell is slow and considered a bad habit, if the point is simply to pause the execution.

    Besides, using system should really never be necessary. In windows, everything you could ever achieve by using the oh-so limited cmd, could be achieved by using the API.

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