Re: [Xen-devel] [PATCH v6 5/9] Add an implentation of asprintf() for xen

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 08.05.14 at 15:23, <paul.durrant@xxxxxxxxxx> wrote:
> +int vasprintf(char **bufp, const char *fmt, va_list args)
> +{
> +    va_list args_copy;
> +    size_t size;
> +    char *buf, dummy[1];
> +
> +    va_copy(args_copy, args);
> +    size = vsnprintf(dummy, 0, fmt, args_copy);

Is there a reason for the first argument not simply being NULL?

Jan


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