New multi_format_unit variadic macro to handle formatting multiple numbers at once

miner.c

@@ -2411,6 +2411,33 @@ char *format_unit(char *buf, bool floatprec, const char *measurement, enum h2bs_
 }
 #define hashrate_to_bufstr(buf, hashrate, unitin, fmt)  format_unit(buf, true, "h/s", fmt, hashrate, unitin)
 
+static
+char *_multi_format_unit(char *bufin, bool floatprec, const char *measurement, enum h2bs_fmt fmt, const char *delim, int count, const float *numbers)
+{
+	unsigned char unit = 0;
+	int i;
+	size_t delimsz = strlen(delim);
+	char *buf = bufin;
+	
+	for (i = 0; i < count; ++i)
+		pick_unit(numbers[i], &unit);
+	
+	--count;
+	for (i = 0; i < count; ++i)
+	{
+		format_unit(buf, floatprec, NULL, H2B_NOUNIT, numbers[i], unit);
+		buf += strlen(buf);
+		memcpy(buf, delim, delimsz);
+		buf += delimsz;
+	}
+	
+	// Last entry has the unit
+	format_unit(buf, floatprec, measurement, fmt, numbers[count], unit);
+	
+	return bufin;
+}
+#define multi_format_unit(buf, floatprec, measurement, fmt, delim, count, ...)  _multi_format_unit(buf, floatprec, measurement, fmt, delim, count, (float[]){ __VA_ARGS__ })
+
 static void
 ti_hashrate_bufstr(char**out, float current, float average, float sharebased, enum h2bs_fmt longfmt)
 {