Proposal: Add hasBitSize to Data.Bits.Bits
Andreas Abel
andreas.abel at ifi.lmu.de
Sat Jul 28 18:57:37 CEST 2012
On 28.07.12 4:40 PM, John Lato wrote:
>> From: Edward Kmett <ekmett at gmail.com>
>>
>> On Fri, Jul 27, 2012 at 3:42 PM, Ian Lynagh <igloo at earth.li> wrote:
>>
>>> On Fri, Jul 27, 2012 at 03:06:04PM -0400, Edward Kmett wrote:
>>>> There is currently no way to know whether or not calling
>>>> Data.Bits.bitSizewill crash your program.
>>>>
>>>> I propose extending the Bits class to include:
>>>>
>>>> hasBitSize :: Bits b => b -> Bool
>
> I'm in favor of changing the type of bitSize, although since none of
> my code uses that function it's an easy position for me to take.
+1. The Haskellish solution would let return bitSize a Maybe.
--
Andreas Abel <>< Du bist der geliebte Mensch.
Theoretical Computer Science, University of Munich
Oettingenstr. 67, D-80538 Munich, GERMANY
andreas.abel at ifi.lmu.de
http://www2.tcs.ifi.lmu.de/~abel/
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