Apple Blocks added to C++?

[grauzone]

Walter Bright wrote:
> Tim M wrote:
>> Walter: may I ask with this, reddit posts and dobb's code post, why
>> the interest in this particular topic right now? Didn't you implement
>> this a long time ago?
> 
> It was one of the first things implemented in D.
> 
> But I was thinking about it lately as I prepare the materials for the 
> Compiler Construction seminar in a few weeks. Everyone tells me they are 
> simple and obvious, yet in language after language they get added in 
> bizarre ways that suggest that *somebody*, me or them, is just not 
> getting it.
> 
> So I thought it was time for an article.
> 
> I mean, how can one miss the most stunningly obvious syntax:
> 
>    int foo(int a)
>    {
>          int bar(int i) { return a + 3; }
> 
>          return bar(3);
>    }
> 
> and that nested functions are useful for many more things than passing 
> around pointers to them. For example, as helper functions.

It has been a GCC extension for a long time:

http://gcc.gnu.org/onlinedocs/gcc-2.95.3/gcc_4.html#SEC65