You can download Xamarin Studio for OS X or Visual Studio with Xamarin here https://www.xamarin.com/download

A quick check of the stories on the front page suggests this is the case; editorial content and news covering yesterday's events is all /19 (today) whereas today's news and online content (for tomorrow's paper) is all /20 (tomorrow).

> Only numeric variables are supported (no strings, no matrices)

Basic.hpp defines LET as:

    #define LET double [1]

Perhaps this would allow for a broader range of types, seen as C++11 is being used:

    #define LET auto

[1]: https://github.com/rollbear/basicpp/blob/master/basic.hpp#L8...

Link to the documentary for those in the UK: http://www.bbc.co.uk/iplayer/episode/b0074rxx/horizon-199519...

App Store link, for anyone that's interested: https://itunes.apple.com/gb/app/lisping/id512138518?mt=8

Their about page lists the licenses for several native iOS libraries (AFNetworking, etc) which suggests it is mostly native.

Dev here. It's all native. Our iOS team says, "some of the third party libraries we have are Objective-C, but we've only written Swift code."

Over the years it seems there have been a fair few 'Hacker News for X' (see https://hn.algolia.com/#!/story/forever/prefix/0/hacker%20ne...). Presumably each time people implement the whole site from scratch (users, commenting, ranking, etc). Have there ever been any open-source attempts at creating a generic Hacker News style site that people could self host for specific topics? The only thing that I can think of is self-hosting your own copy of reddit.

The site in the OP is pretty clearly a deployment of the software that http://lobste.rs develops, uses, and publishes as a 3-clause BSD-licensed project: https://github.com/jcs/lobsters

Perhaps Sacha Greif's Telescope? http://sachagreif.com/introducing-telescope/

From the discussion yesterday on "HN for data scientists"[0], there was mention of a service which enables one to deploy "HN for X"[1], as well as some discussion that (some version of) the code for HN is available[2].

[0] https://news.ycombinator.com/item?id=8696443

[1] https://news.ycombinator.com/item?id=8697407

[2] https://news.ycombinator.com/item?id=8697102

Direct link to service mentioned: http://www.postatic.com/admin/hello/welcome

I see it says 'sign up for free' but is it a free service? Do you know if I can create a HN-like site as I might a WP blog?

Stamplay is a BaaS similar to Firebase (think of it like IFTTT for backend dev). They open-sourced a HN-clone with their service that gets you up and running super quickly: https://github.com/Stamplay/stamplay-hackernews

OP: There's a typo in the title for ReadKit:

> ReadKit RRS reader

(should read RSS).

Good catch! Fixed.

What's more, you can't get the current properties of the interface objects (e.g. the position on screen, or text content). You can only write to them: https://developer.apple.com/library/prerelease/ios/documenta....

Does that matter? If you need to know those values, you can just store them locally when you set them.

Wait, then how do you get user input at all? Just buttons? That sounds like a pain.

There seems to be some kind of dictation-based input

> Also you can use smart pointers to do automatic garbage collection.

Not quite. Smart pointers do automatic reference counting, which doesn't use a garbage collector.

Well, reference counting is a form of garbage collection, just not a very good one.

It is incomplete in the sense cycles are not collected, one would need extra machinery for those. It is also not great about throughput, a part of the problem is that it dirties the cache too much. Locking the count (or avoiding it somehow) is another issue. On the other hand for many use cases better latencies are achieved with reference counting than with alternative forms of garbage collection, (but this depends on use cases).

If runtime data cannot have have cycles, garbage is not created at a phenomenal rate and you are quite worried about GC pauses, then reference counting is often a cheap and effective solution.

Regardless, it sure is garbage collection.

I think he is referring to scoped pointers.