Nick Kralevich bd8e6749b7 cdefs.h: introduce __bos0 ...

Introduce __bos0 as a #define for __builtin_object_size((s), 0).
This macro is intended to be used for places where the standard
__bos macro isn't appropriate.

memcpy, memmove, and memset deliberately use __bos0. This is done
for two reasons:

1) I haven't yet tested to see if __bos is safe to use.
2) glibc uses __bos0 for these methods.

Change-Id: Ifbe02efdb10a72fe3529dbcc47ff647bde6feeca

2013-08-28 14:27:14 -07:00

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