[GHC] #5071: GHCi crashes on large alloca/allocaBytes requests

[GHC]

#5071: GHCi crashes on large alloca/allocaBytes requests
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    Reporter:  guest             |       Owner:              
        Type:  bug               |      Status:  new         
    Priority:  normal            |   Component:  Compiler    
     Version:  7.0.3             |    Keywords:              
    Testcase:                    |   Blockedby:              
          Os:  Unknown/Multiple  |    Blocking:              
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown
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Comment(by chak):

 I would suggest to make the libraries comply with the Haskell standard.
 Raising an exception instead of returning a `nullPtr` will break all code
 that is written against the standard.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5071#comment:3>
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