[swift-users] When does `Data.init?(capacity:)` fail?

[Saagar Jha]

This <http://article.gmane.org/gmane.comp.lang.swift.user/1702> might be
relavant. Basically, Data’s init will fail if memory can’t be allocated for
it.


On Fri, Jun 17, 2016 at 11:38 AM Adrian Zubarev via swift-users <
swift-users at swift.org> wrote:

> Hello there, I’m trying to optimize my code and reduce copying from
> different buffers into a new one.
>
> I thought I just create a Data value with enough capacity and write
> directly into it. My problem is that Data.init?(capacity:) can fail, but
> why and when?
>
> Can someone explain this behavior to me?
>
> I’m sending data via TCP sockets and when recn function write directly
> into a Data struct.
>
>
>
> --
> Adrian Zubarev
> Sent with Airmail
>
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>
-- 
-Saagar Jha
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