On Tue, Sep 26, 2017 at 11:15:36AM +0100, Daniel P. Berrange wrote:
> Latest GCC versions are unhappy with us treating an integer
> arithmetic result as a boolean:
>
> libvirt-utils.c: In function ‘virReallocN’:
> libvirt-utils.c:111:23: warning: ‘*’ in boolean context, suggest ‘&&’ instead
> [-Wint-in-bool-context]
> if (!tmp && (size * count)) {
> ~~^~~~
>
> Add an explicit comparison '!= 0' to keep it happy, since its
> suggestion to use '&&' is nonsense.
>
> Signed-off-by: Daniel P. Berrange
> ---
> libvirt-utils.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libvirt-utils.c b/libvirt-utils.c
> index b8ac5e9..f7b4478 100644
> --- a/libvirt-utils.c
> +++ b/libvirt-utils.c
> @@ -108,7 +108,7 @@ virReallocN(void *ptrptr,
> return -1;
> }
> tmp = realloc(*(void**)ptrptr, size * count);
> -if (!tmp && (size * count)) {
> +if (!tmp && ((size * count) != 0)) {
There is no need for the extra set of brackets:
if (!tmp && (size * count) != 0) {...}
but that's a matter of personal preference.
Reviewed-by: Pavel Hrdina
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