merge

src/serra/helpers.go

@@ -217,3 +217,26 @@ func filterForDigits(str string) int {
 	s, _ := strconv.Atoi(numStr)
 	return s
 }
+
+func getFloat64(unknown interface{}) (float64, error) {
+	switch i := unknown.(type) {
+	case float64:
+		return i, nil
+	case float32:
+		return float64(i), nil
+	case int64:
+		return float64(i), nil
+	case int32:
+		return float64(i), nil
+	case int:
+		return float64(i), nil
+	case uint64:
+		return float64(i), nil
+	case uint32:
+		return float64(i), nil
+	case uint:
+		return float64(i), nil
+	default:
+		return math.NaN(), errors.New("Non-numeric type could not be converted to float")
+	}
+}