[Haskell-beginners] Re: Printf and bool

Aditya Mahajan adi.mahajan at gmail.com
Mon Jan 19 14:42:15 EST 2009

On Mon, 19 Jan 2009, Brent Yorgey wrote:

> On Mon, Jan 19, 2009 at 10:04:21AM -0500, Aditya Mahajan wrote:
>> Hi,
>> I like the printf function from Text.Printf to display results on the
>> terminal. I noticed that there is no format specifier for Bool. Can someone
>> suggest how to create an instance of PrintfArg for Bool?
> Why not just use something like
>  printf "%s" (show b)
> where b :: Bool ?

Because it breaks type safety.


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