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Blocks in C, not C++Blocks in C, not C++Posted Sep 16, 2009 20:45 UTC (Wed) by atai (subscriber, #10977)In reply to: Blocks in C, not C++ by ncm Parent article: Tornado and Grand Central Dispatch: a quick look
Is there any plan to implement similar feature (extension) in gcc?
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Blocks in C, not C++ Posted Sep 16, 2009 20:51 UTC (Wed) by nteon (subscriber, #53899) [Link]
recent llvm-gcc (available on Debian and other fine platforms) should have
blocks support built-in I believe. Clang as well. To actually _use_ blocks, you need the BlocksRuntime shared library, available as part of compiler-rt [1] (which builds and runs on Linux as of last week). Unfortunately I don't think its packaged anywhere yet.
Blocks in C, not C++ Posted Sep 16, 2009 20:54 UTC (Wed) by drag (subscriber, #31333) [Link]
It would be what is required if you want GCD support for C++, I suppose.
Clang/LLVM does not support anything but C. For C++ you'd need GCC proper or GCC/LLVM. I beleive.
Blocks in C, not C++ Posted Sep 17, 2009 2:12 UTC (Thu) by jdahlin (subscriber, #14990) [Link]
It supports both ObjC and C++, it may not support the standard as well as
GCC, but enough to compile a couple of small test programs. I'm confident clang will deliver a C++ compiler reasonably compatible with GCC sometime next year.
Blocks in C, not C++ Posted Sep 16, 2009 21:54 UTC (Wed) by ncm (subscriber, #165) [Link]
If you're asking whether this "blocks" feature will be added to the Gcc C compiler, I would expect not until it gets very close to standardization as an ISO C feature. I don't know if Apple has placed this blocks thing before the C committee yet, or what the C committee thinks/would think of it. The GNU Gcc developers are very keen on observing relevant standards; proprietary features encourage lock-in. I doubt anybody would bother putting it in before that, given that the Clang C compiler has it.
Blocks in C, not C++ Posted Sep 16, 2009 22:46 UTC (Wed) by ncm (subscriber, #165) [Link]
I will note further that the Lambda feature in C++ has different syntax from Blocks, and there will be strong pressure, particularly from implementers, on the C committee to match the C++ Lambda syntax, i.e. using "[]" where Apple's Blocks uses "^". (Ironically, "[]" looks typographically more like a block, and "^" looks more like a lambda.) I expect Apple to support both syntaxes in the end.
Blocks in C, not C++ Posted Sep 17, 2009 1:29 UTC (Thu) by busterb (subscriber, #560) [Link]
But [] is used by objective C to call methods, so Apple is likely to not support this, at least not OS
X's most-supported language.
Blocks in C, not C++ Posted Sep 18, 2009 8:01 UTC (Fri) by marcH (subscriber, #57642) [Link]
> The GNU Gcc developers are very keen on observing relevant standards; proprietary features encourage lock-in.
Here is a list of non-standard GCC extensions:
http://www.ibm.com/developerworks/linux/library/l-gcc-hacks/
You can probably find a better list; this one took me only 15 seconds to find.
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