[Haskell-cafe] Disable echo in POSIX terminal
lemming at henning-thielemann.de
Sat Nov 10 04:44:29 EST 2007
On Fri, 9 Nov 2007, Derek Elkins wrote:
> Pointless frobbing but is there any issue with setting the echo to False
> when it is already False? Otherwise not checking seems to both simpler
> and quicker (not that performance matters), i.e.
> getpasswd h = do
> wasEnabled <- hGetEcho h
> hSetEcho h False
> str <- hGetLine h
> hSetEcho wasEnabled
> return str
Should one enclose this in 'bracket'?
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