[GHC] #9859: Implement `calloc{, Bytes, Array, Array0}` allocators

[GHC]

#9859: Implement `calloc{,Bytes,Array,Array0}` allocators
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              Reporter:  ifesdjeen   |            Owner:
                  Type:  feature     |           Status:  patch
  request                            |        Milestone:  7.10.1
              Priority:  normal      |          Version:
             Component:  Core        |         Keywords:  ffi
  Libraries                          |     Architecture:  Unknown/Multiple
            Resolution:              |       Difficulty:  Easy (less than 1
      Operating System:              |  hour)
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D527   |
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"08610c1fdc7816c74faed40f8a7d3c4b4758709e/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="08610c1fdc7816c74faed40f8a7d3c4b4758709e"
 Implement `calloc{,Bytes,Array,Array0}` allocators

 Summary:
 This adds zero-initialising versions of `malloc{,Bytes,Array,Array0}`

  * Add `calloc` and `callocBytes` to `Foreign.Marshal.Alloc`.
  * Add `callocArray` and `callocArray0` to `Foreign.Marshal.Array`.

 Reviewers: ekmett, duncan, austin, hvr

 Reviewed By: austin, hvr

 Subscribers: ezyang, simonmar, ekmett, duncan, thomie, carter

 Projects: #ghc

 Differential Revision: https://phabricator.haskell.org/D527

 GHC Trac Issues: #9859
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9859#comment:2>
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