[GHC] #8697: Type rationals

GHC ghc-devs at haskell.org
Fri Feb 14 20:37:01 UTC 2014


#8697: Type rationals
-------------------------------------+------------------------------------
        Reporter:  MikeIzbicki       |            Owner:
            Type:  feature request   |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by carter):

 so lets decouple this a teeny bit:

  a) having good syntactic support for writing numerical literals at the
 type level: Integers, Nats, Rationals (possibly with floating point style
 notation)

  b) having a satisfactory type model underneath that supports the
 computations you want to do.


 currently in GHC those two are conflated, and perhaps they should be
 decoupled!

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8697#comment:11>
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