[vector] #54: Missing NFData instances for vector types

vector vector at projects.haskell.org
Sun Jan 29 12:34:08 GMT 2012


#54: Missing NFData instances for vector types
------------------------+---------------------------------------------------
Reporter:  hvr          |        Owner:          
    Type:  enhancement  |       Status:  reopened
Priority:  blocker      |    Milestone:  0.10    
 Version:  0.7          |   Resolution:          
Keywords:               |  
------------------------+---------------------------------------------------

Comment(by rl):

 Ideally yes, but Haskell doesn't really support that. The closest is the
 new GHC extension:

 {{{
 class Monad m => NFDataM m a where
   mrnf :: a -> m ()

   default mrnf :: NFData a => a -> m ()
   mrnf x = rnf x `seq` return ()
 }}}

 But you'd still have to say

 {{{
 instance NFDataM m MyType
 }}}

-- 
Ticket URL: <http://trac.haskell.org/vector/ticket/54#comment:18>
vector <http://trac.haskell.org/vector>
Package vector


More information about the vector mailing list