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Subject: Re: Apple's GCC 42 enhancements (was Re: [CFT] Experimental gcc
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From: David Chisnall <theraven@FreeBSD.org>
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To: Pedro Giffuni <pfg@FreeBSD.org>
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On 23 Nov 2013, at 22:11, Pedro Giffuni <pfg@freebsd.org> wrote:

> I have particular interest in -fwritable-strings
> and the block support, mostly with the idea of making our gcc
> somewhat more compatible to clang.

I would absolutely love to see our GCC have blocks support.  It would be =
very nice to be able to use blocks in libc. =20

I have some macros that allow code to call blocks even when compiled =
with a compiler that doesn't support them, but having native blocks =
support would be fantastic.  It's worth noting that Apple's libc =
includes a few _b variants of standard library functions:

scandir_b
err_set_exit_b
fts_open_b
glob_b
atexit_b
bsearch_b
heapsort_b
mergesort_b
psort_b
qsort_b

These all do the same as their non-_b-suffixed equivalents, but take a =
block as an argument instead of a function pointer.  Adding them has =
been on my todo list for a while, and this would give me a strong =
incentive to do so...

David