Clang的块如何工作？ [英] How do Clang 'blocks' work?

问题描述

http://clang.llvm.org/docs/BlockLanguageSpec.txt

看起来很酷。

但是，

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我不明白。

我没有看到例子。

任何人都可以在这方面启发我？

解决方案

块本质上是一种将代码和范围作为数据传递的方法。它们在某些其他语言中称为关闭和匿名函数。

这里是文章，其中包含更多详细信息和代码示例。

http://clang.llvm.org/docs/BlockLanguageSpec.txt

Looks really cool.

However,

1. I don't understand it.
2. I don't see examples it.
3. I don't see examples of ideas hard to express in C++ as is, but trivial to express in blocks.

Can anyone enlighten me on this?

解决方案

Blocks are, essentially, a way to pass code and scope around as data. They're known in some other languages as closures and anonymous functions.

Here's an article with more details and code examples.

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