darcs patch: System.Posix.Temp: improve haddocks for ... (and 2 more)

[Gwern Branwen]

On Mon, Jan 18, 2010 at 7:35 PM,  <gwern0 at gmail.com> wrote:
> Mon Jan 18 19:27:55 EST 2010  gwern0 at gmail.com
>  * System.Posix.Temp: improve haddocks for mkstemp to explain what that returned String actually is
>
> Mon Jan 18 19:30:22 EST 2010  gwern0 at gmail.com
>  * System.Posix.Temp: pad input filenames with 6 Xs
>  If the argument doesn't terminate in capital Xs, the C mkstemp will simply bomb out
>  with zero warning. This was not documented.
>  By arbitrarily sticking a bunch of Xes at the end of all arguments, we guarantee that
>  this exception will not be thrown, the type signature will not change, and no existing
>  code can break (since if it was manually avoiding the exception by adding "XXX" itself,
>  the temp files will now be simply 3 random characters longer, nothing worse).
>
> Mon Jan 18 19:34:37 EST 2010  gwern0 at gmail.com
>  * System.Posix.Temp: rm whitespace

Any thoughts by anyone? The changes seem straightforward enough to me
that I'd rather not file bugs (if Trac is even working again).

-- 
gwern