Re: mingw lseek bug

[Eric Blake]

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According to Bruno Haible on 5/28/2007 7:55 AM:
> Thanks for explaining. I thought you were talking about the lseek call
> inside fflush, not about an lseek call before it.
> 
> Since loss of data is a severe condition, I'm adding a note about it:

Thanks.

> +     output and seekable input streams are supported.
> +     Note! LOSS OF DATA can occur if fflush is applied on an input stream
> +     that is _not_seekable_ or on an update stream that is _not_seekable_
> +     and in which the most recent operation was input.  Seekability can
> +     be tested with lseek(fileno(fp),0,SEEK_CUR).  */

Do we want to offer ftello(fp) as the shorter alternative to
lseek(fileno(fp),0,SEEK_CUR) for testing seekability?  Furthermore, it
would allow a user application to get by with only <stdio.h> instead of
also needing <unistd.h>.

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

Eric Blake             address@hidden
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