Implement `calloc{,Bytes,Array,Array0}` allocators

[John Lato]

+1, very sensible addition.

On 09:24, Sun, Nov 30, 2014 Luite Stegeman <stegeman at gmail.com> wrote:

> +1 here too
>
> additionally for GHCJS this is a no-brainer since ArrayBuffers (used for
> data storage when Addr# / Ptr is involved) are initialized to 0 on
> allocation, making calloc no more expensive than malloc.
>
>
> On Sat, Nov 29, 2014 at 5:05 PM, Oleksandr Petrov <
> oleksandr.petrov at gmail.com> wrote:
>
>> Hi everyone,
>>
>> There is a proposal [1] (with implemented revision) to implement zero-initialising
>> versions
>> of malloc{,Bytes,Array,Array0}
>>
>>    - Add calloc and callocBytes to Foreign.Marshal.Alloc.
>>    - Add callocArray and callocArray0 to Foreign.Marshal.Array.
>>
>> The benefit is that you can allocate required amount of memory and be
>> certain that it will be cleared
>> (set with zeroes) before you use it. Original discussion took a place in
>> `fillBytes` [1] and was
>> publicised on that mailing list [2].
>>
>> Please share your thoughts.
>>
>> Thank you.
>>
>> [1] https://phabricator.haskell.org/D527
>> [2] https://phabricator.haskell.org/D461#11541
>> [3] https://www.haskell.org/pipermail/libraries/2014-November/024251.html
>>
>>
>>
>>
>> --
>> alex p
>>
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