fix required for new -> default

src/oned/coda_bar_reader.rs

@@ -40,9 +40,9 @@ pub struct CodaBarReader {
 impl Default for CodaBarReader {
     fn default() -> Self {
         Self {
-            decodeRowRXingResult: Default::default(),
-            counters: Default::default(),
-            counterLength: Default::default(),
+            decodeRowRXingResult: String::with_capacity(20),
+            counters: vec![0; 80],
+            counterLength: 0,
         }
     }
 }

src/oned/code_39_reader.rs

@@ -27,13 +27,18 @@ use super::{one_d_reader, OneDReader};
  * @author Sean Owen
  * @see Code93Reader
  */
-#[derive(OneDReader,Default)]
+#[derive(OneDReader)]
 pub struct Code39Reader {
     usingCheckDigit: bool,
     extendedMode: bool,
     decodeRowRXingResult: String,
     // counters: Vec<u32>,
 }
+impl Default for Code39Reader {
+    fn default() -> Self {
+        Self::with_use_check_digit(false)
+    }
+}
 impl OneDReader for Code39Reader {
     fn decodeRow(
         &mut self,

src/oned/code_93_reader.rs

@@ -26,12 +26,21 @@ use super::{one_d_reader, OneDReader};
  * @author Sean Owen
  * @see Code39Reader
  */
-#[derive(OneDReader,Default)]
+#[derive(OneDReader)]
 pub struct Code93Reader {
     decodeRowRXingResult: String,
     counters: [u32; 6],
 }
 
+impl Default for Code93Reader {
+    fn default() -> Self {
+        Self {
+            decodeRowRXingResult: String::with_capacity(20),
+            counters: [0; 6],
+        }
+    }
+}
+
 impl OneDReader for Code93Reader {
     fn decodeRow(
         &mut self,