Re: Odd IFS reading issue

[Charles Wilt <charles.wilt@xxxxxxxxx>]

Aaron,

Don't think that it's weird, but
Offset 0 = 1st byte
Offset 1 = 2nd byte
...
Offset 1023 = 1024th byte
Offset 1024 = 1025th byte

Just have to remember when dealing with pointers (memmory address) and
offsets that offset 0 is the first byte of whatever is being pointed
to.

Charles

On Thu, Jul 2, 2009 at 1:36 PM, Aaron Bartell<aaronbartell@xxxxxxxxx> wrote:
>   You statements led me to debug from the good ol' green screen and I am in
>   agreement with y'all because when I do an EVAL GDATAPTR1:X 1024 I then see
>   the last character being the x'70'.
>
>   So I went back to my "trusted" WDSC and did the following steps (which are
>   the same ones that led me to the screen shots):
>
>   1) Right click on gDataPtr and select Monitor Memory->Hex.
>   2) Right click on the first address that is now highlighted by default and
>   select Go To Address...
>   3) Now a non-modal dialog is at the bottom of the Memory view and in the
>   drop down I select Go to Offset
>   4) In the text box I enter 1024, de-select the Input as Hex, and select
>   the OK button.
>
>   The above steps position me to 1025 like you are suggesting and NOT 1024
>   (Aaron shakes his fist at the sky).  What the heck!?  Is there some weird
>   offset rules with Memory view?  Note this is WDSC v7.0.x
>
>   So that led me to look at the process that I am passing my gDataPtr1 to
>   and it is in THERE that my code is slapping me around.  In that code I am
>   basically taking the contents of the pointer and converting it to base64
>   encoded but what I am NOT doing is stopping at the right point.
>   AAAARGGGGHHH!   Completely my oversight, but everyone's comments helped me
>   verify that.  For a second I thought the IFS read() api was acting funky
>   on me and that would be a very bad thing as I read/write to IFS files A
>   LOT (I had a little sweat rolling down my back :-)
>
>   Thanks everybody for responding,
>   Aaron Bartell
>   [1]http://mowyourlawn.com
>
>   p.s. If you want to see me shave parts of my body please head over to
>   [2]http://firstgiving.com/aaronbartell to learn how to make it happen.
>   Yes it sounds gross, but it is for a good cause!
>
> References
>
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