Re: [Libguestfs] [PATCH nbdkit v2] common: isaligned: Use a macro instead of relying on implicit truncation.
On 9/17/18 4:41 PM, Nir Soffer wrote:
The FreeBSD version:
#define IS_ALIGNED <http://fxr.watson.org/fxr/ident?i=IS_ALIGNED>(n
<http://fxr.watson.org/fxr/ident?i=n>,align) (!((uint32_t)(n
<http://fxr.watson.org/fxr/ident?i=n>) & (align - 1)))
http://fxr.watson.org/fxr/source/contrib/ncsw/inc/ncsw_ext.h#L182
Which truncates to 32 bits. But that's what we're trying to get rid of
- by moving to a macro that lets us do full 64-bit alignment if needed.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org