[vector] #88: Add mapMaybe and catMaybes

[vector]

#88: Add mapMaybe and catMaybes
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Reporter:  akio         |        Owner:     
    Type:  enhancement  |       Status:  new
Priority:  major        |    Milestone:     
 Version:               |   Resolution:     
Keywords:               |  
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Changes (by dleuschner):

 * cc: leuschner at factisresearch.com (added)


Comment:

 Are there any reasons not to include this? I've just built a custom
 version of Vector to be able to use it but it's always a bit painful to
 use custom patched versions that are not released on hackage.

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Ticket URL: <http://trac.haskell.org/vector/ticket/88#comment:1>
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