添加huffman算法

source/soft/bytearray.c

@@ -106,6 +106,17 @@ uint8_t arr_get(array_def *a,int index)
 }
 
 
+void arr_reset(array_def *a,uint8_t d,int index)
+{
+  param_check(a);
+  rt_mutex_take(a->mutex,RT_WAITING_FOREVER);
+  if(index<0) index=a->used+index;
+  if((index>=0&&index<a->used)==0){}
+  else a->data[index]=d;
+  rt_mutex_release(a->mutex);
+}
+
+
 uint8_t *arr_data(array_def *a)
 {
   param_check(a);