Re: Austin group ruling on ungetc vs. fflush

[Eric Blake]

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According to Bruno Haible on 1/17/2009 6:45 AM:
> If you remove this special-casing, one of the tests in the testsuite fails.
> Namely when the first fseek after fflush attempts to position beyond end of
> file. That's something that lseek() does not support, but we are forced to
> used lseek() in this situation, by POSIX. You can try to undo these two
> hunks and fix the resulting test failure differently...

Huh?  "The lseek() function shall allow the file offset to be set beyond
the end of the existing data in the file.  If data is later written at
this point, subsequent reads of data in the gap shall return bytes with
the value 0 until data is actually written into the gap."
http://www.opengroup.org/onlinepubs/9699919799/functions/lseek.html

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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