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Date: Sat, 25 Aug 2012 21:42:25 -0400
From: Gregor Richards <gr@...due.edu>
To: musl@...ts.openwall.com
Subject: C11 low-hanging fruit
Attached is a diff that adds the trivially-simple bits of C11. That is,
those that require changes to the standard headers, but very little in
the way of implementation. Included are:
* stdalign.h , including backwards compatibility for GCC.
* aligned_alloc
* fopen(..., "...x")
* conditional removal of gets
Excluded are:
* threads.h (waiting to see glibc's ABI)
* stdatomic.h (complicated, probably has ABI implications too, not
even fully supported by GCC yet)
* uchar.h (this is MOSTLY trivial since musl's wchar is Unicode
anyway, but char32_t makes it a bit more than some weak aliases)
* at_quick_exit, quick_exit (I suspect that our benevolent dictator
will have a lot to say in exactly what makes an exit "quick" or not, so
I'm not touching this)
I used __STDC_VERSION__ in the headers to control exposure of
aligned_alloc and gets. aligned_alloc I additionally exposed with the
non-standard feature test macro _ISOC11_SOURCE, for the simple reason
that glibc does it; if you have a non-C11 compiler but C11 libc,
-D_ISOC11_SOURCE is a much less gross way to get aligned_alloc than
-D_GNU_SOURCE, anyway :)
With valediction,
- Gregor Richards
View attachment "c11-easy.diff" of type "text/x-diff" (2398 bytes)
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