[GHC] #13124: Template Haskell: Floating point literals that cannot be represented by rationals

[GHC]

#13124: Template Haskell: Floating point literals that cannot be represented by
rationals
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           Reporter:  lerkok         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Template       |           Version:  8.0.1
  Haskell                            |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Currently, TH expressions and patterns store Float/Double values as
 rationals: http://hackage.haskell.org/package/template-
 haskell-2.11.1.0/docs/Language-Haskell-TH-Syntax.html#t:Lit

 Unfortunately, this isn't sufficient, as there is no way to properly
 support usual floating point values such as NaN, Infinity, and Negative-
 Zero. This is true for both expressions and patterns.

 It would be nice if Double/Float literals were stored as double-floats
 themselves, instead of rationals.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13124>
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