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| 22-09-09 / 00:23 : Apple : article sur les Blocks de Grand Central (cjed) |
| Apple propose un article à propos de la programmation à base de Blocks de Grand Central Dispatch : Block objects (informally, “blocks”) are an extension to C, as well as Objective-C and C++, that make it easy for programmers to define self-contained units of work. Blocks are similar to — but far more powerful than — traditional function pointers. The key differences are: - Blocks can be defined inline, as “anonymous functions.” - Blocks capture read-only copies of local variables, similar to “closures” in other languages This is kind of functionality is common in dynamically-typed interpreted languages, but has never before been widely available to C programmers. Les dispatch queues et dispatch semaphores sont abordés. |
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