[GHC] #7034: reading a large double results in zero with ghc-7.4.2

[GHC]

#7034: reading a large double results in zero with ghc-7.4.2
-------------------------------+--------------------------------------------
  Reporter:  maeder            |          Owner:  pcapriotti      
      Type:  bug               |         Status:  closed          
  Priority:  normal            |      Milestone:  7.6.1           
 Component:  Compiler          |        Version:  7.4.2           
Resolution:  fixed             |       Keywords:                  
        Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown      |     Difficulty:  Unknown         
  Testcase:  T7034             |      Blockedby:                  
  Blocking:                    |        Related:  #5692           
-------------------------------+--------------------------------------------
Changes (by pcapriotti):

  * status:  new => closed
  * testcase:  => T7034
  * resolution:  => fixed
  * related:  => #5692


Comment:

 Fixed by:

 {{{
 commit 4226bae42fdd666c15190ac2f8784547d3fbad5f
 Author: Paolo Capriotti <p.capriotti at gmail.com>
 Date:   Mon Jul 2 12:54:57 2012 +0100

     Fix parsing of RealFloat with huge exponents (#7034).

     Ensure numberToRangedRational returns Nothing immediately if the
     exponent is outside Int range, so that we avoid an integer overflow
     later.
 }}}

 This only covers the failure for `read` in base.

 The failure in the lexer is tracked by #5692.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7034#comment:4>
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