C# list bug using addRange after call toString method only on unity ios

Question

I found a strange behavior when using list addRange method after call the toString method; here is the test code:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using System;
 
 public class ListAddRangeTest : MonoBehaviour {
   void Start () {
     try
         {
             TestAddRange();
     }
     catch (Exception e) {
       ConsolePrintln(e.ToString());
     }
   }
     
     private void TestAddRange()
     {
         int[] arr = new int[4];
         for(int i=0; i<arr.Length; i++)
         {
             arr[i] = i;
         }
         List<int> list1 = new List<int>();
         list1.AddRange(arr);
         PrintList(list1);
         
         Debug.Log(arr.ToString());
         
         List<int> list2 = new List<int>();
         list2.AddRange(arr);
         PrintList(list2);
     }
 
   public void ConsolePrintln(string text) {
     UnityEngine.Debug.Log(text);
   }
     
     public void PrintList(List<int> arr)
     {
         ConsolePrintln("Start print list--------");
         for(int i=0; i<arr.Count; i++)
         {
             ConsolePrintln (arr[i].ToString());
         }
         ConsolePrintln("end print list--------");
     }
 }

after call the toString method, the the element in list2 sometime is all 0,but not always；this behavior only occurs on the ios platform,never occur in the editor;

I found a relate issue about the toString method is http://stackoverflow.com/questions/9929388/c-sharp-listobject-to-ilist-cast-bug-in-unity3d;I think they are the same problem;

So anyone can help me? It is so strange!!!!!

Answer 1

Answer by tw1st3d · Jul 25, 2013 at 03:25 AM

No idea what might be causing the problem except for maybe a list call error. Try this.

 foreach(int i in arr)
 {
     ConsolePrintln(i.ToString());
 }
 ConsolePrintln("end print list--------");

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z-Tree · Jul 25, 2013 at 03:34 AM 0

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result is same! here is the output

Start print list--------