Re: [PATCH v2] perf tools: Remove cast of non-variadic function to variadic

[Arnaldo Carvalho de Melo <acme@redhat.com>]

Em Thu, Oct 31, 2013 at 04:47:45PM -0700, Michael Hudson-Doyle escreveu:
> -int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent)
> +int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)
>  {
> -	const char *color = get_percent_color(percent);
> +	va_list args;
> +	double percent;
> +	const char *color;
> +
> +	va_start(args, fmt);
> +	percent = va_arg(args, double);
> +	va_end(args);
> +	color = get_percent_color(percent);
>  	return color_snprintf(bf, size, color, fmt, percent);
>  }

As a bug fix I'm merging this now, but I wonder if, since we're doing
the va_start/end dance here, can't we call some color_vsnprintf variant
so as to avoid doing it twice?

I'll look into that after going thru more urgent stuff.

- Arnaldo