On 04/23/2017 09:33 AM, jemmy858585@gmail.com wrote:
> From: Lidong Chen <lidongchen@tencent.com>
> 
> Fix some spelling errors in is_allocated_sectors comment.
> 
> Signed-off-by: Lidong Chen <lidongchen@tencent.com>
> ---
>  qemu-img.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/qemu-img.c b/qemu-img.c
> index df6d165..0b3349c 100644
> --- a/qemu-img.c
> +++ b/qemu-img.c
> @@ -1033,8 +1033,8 @@ done:
>  }
>  
>  /*
> - * Returns true iff the first sector pointed to by 'buf' contains at least
> - * a non-NUL byte.
> + * Returns true if the first sector pointed to by 'buf' contains at least
> + * a non-NULL byte.

NACK to both changes.  'iff' is an English word that is shorthand for
"if and only if".  "NUL" means the one-byte character, while "NULL"
means the 8-byte (or 4-byte, on 32-bit platform) pointer value.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org