[libvirt] [PATCH 1/4] Use explicit boolean comparison in OOM check

[Laine Stump]

On 02/22/2017 12:52 PM, Daniel P. Berrange wrote:
> GCC 7 gets upset by
>
>     if (!tmp && (size * count))
>
> warning
>
>    util/viralloc.c: In function 'virReallocN':
>    util/viralloc.c:246:23: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]
>       if (!tmp && (size * count)) {
>                   ~~~~~~^~~~~~~~
>
> Keep it happy by adding != 0 to the right hand expression
> so it realizes we really are wanting to treat the result
> of the arithmetic expression as a boolean

ACK.