On Wed, Feb 22, 2017 at 9:33 AM, Rony G. Flatscher <rony.flatsc...@wu.ac.at>
wrote:
> O.K., this may be a little bit weird: I can manage to have the test code
> run without an exception, repeatedly!
> Background: in the native code I have many, many output statements to
> stderr for debugging (tons over the years, controlled by defines) in the
> form of, e.g:
>
> fprintf(stderr, "...\t\t\t\t\targ(%d)=[%s]\n", idx,
> rtc->CString(rtc->SendMessage0(rtc->ArrayAt(ra,idx),"STRING")));
> fflush(stderr);
>
> Changing the above output to:
>
> fprintf(stderr, "...\t\t\t\t\targ(%d)=[%*.64*s]\n", idx,
> rtc->CString(rtc->SendMessage0(rtc->ArrayAt(ra,idx),"STRING")));
> fflush(stderr);
>
> makes the test code run it seems!
>
btw, thjis is also going to add two entries to the local reference table
each time you do this. The table could end up getting quite large if you
have a long running call. If you're only doing this for debug purposes, it
probably doesn't matter.
Rick
>
> Without restricting the output to a maximum of 64 bytes causes variable
> long strings, including the source code of executed Rexx scripts to be
> displayed. The longest such displayed string is around 6.6 KB large. It is
> then that I receive the exceptions as if the fprintf-statement (or the
> formatting of the string to output) overlays some Rexx memory causing
> eventually that exception. Could that be possible?
>
> ---rony
>
>
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