pointers

This is a discussion on pointers within the C Programming forums, part of the General Programming Boards category; How can I change this line of code into pointer arithmetic? for (k=strlen(t)-1; k>=0; k--) And can I use this ...

  1. #1
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    Unhappy pointers

    How can I change this line of code into pointer arithmetic?

    for (k=strlen(t)-1; k>=0; k--)


    And can I use this line in a pointer arithmetic version or do i need to modify it as well?

    sscanf(t,"%s", &line);

  2. #2
    Registered User The Dog's Avatar
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    Could you please clarify on what it is you would like to do.

  3. #3
    ATH0 quzah's Avatar
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    Yeah. You definately want to be more specific. What are you trying to use pointer arithmatic for in your example? The only pointer I see there is t, and all you're doing there is finding out how long it is.

    Other than that, you're just counting down...

    Code:
    int w,*x,y,*z;
    char *t = "wheeeeeeeeeeeeeeeeeeee";
    
    for( w=strlen(t),x=&w,y=0,z=&y;(t+*x)!=(t+*z);*x-- )
    Is that enough pointer notation for you?

    Quzah.
    Hope is the first step on the road to disappointment.

  4. #4
    Code Goddess Prelude's Avatar
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    >for (k=strlen(t)-1; k>=0; k--)
    This is obviously traversing a string from the end to the front. So it would be something like this:
    Code:
    char *astr = "Some string";
    char *k;
    
    for ( k = &astr[strlen(astr)-1]; k >= astr; k-- )
    >sscanf(t,"%s", &line);
    Be more specific.

    -Prelude
    My best code is written with the delete key.

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