I am not sure if this is related to my previous thread
("NullReferenceException with value struct") so I am starting a new
thread.

I saw in
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmex/html/vclr
frestrictionsofmanagedtypes.asp

they mention that value types cannot contain pointers to other managed
types.  In my __value struct, I had an array of other __value objects,
so I changed it to an unmanaged array.  Now, when I compile using /Ox
for full optimization, I get an Internal Compiler Error.

Can anybody propose a workaround?  Upgrading to VS 2005 is not an option
at the time.

// Test.h
#pragma once

#using <mscorlib.dll>
#using <System.dll>
#using <System.Windows.Forms.dll>

namespace ICE
{
   public __gc class Test : public System::Windows::Forms::Form
   {
   public:
       Test(void) { }

       static const int max_contours = 5;

       __value struct Contours {
           int num_contours;

           __value struct ContourInfo {
               double lower_bound;
               int r;
               int g;
               int b;
           } contours __nogc[max_contours];

           //ContourInfo contours[];

           //Contours()
           //    : contours(new ContourInfo[max_contours])
           //{ }
       };

   protected:
       void Dispose(System::Boolean disposing)
       {
           if (disposing && components)
           {
               components->Dispose();
           }
           __super::Dispose(disposing);
       }

   private:
       /// <summary>
       /// Required designer variable.
       /// </summary>
       System::ComponentModel::Container* components;

   private:
       bool is_blank(const Contours& contours)
       {
           Contours::ContourInfo empty = {0, 0, 0, 0};
           bool blank = true;
           for (int i = 0; i < contours.num_contours; ++i) {
               if (!__box(contours.contours[i])->Equals(__box(empty))) {
                   blank = false;
               }
           }

           return blank;
       }
   };
}

// Test.cpp
#include "Test.h"
#include <windows.h>

#using <mscorlib.dll>

int main()
{
   ICE::Test* t = new ICE::Test;
}

Compile command:
cl /clr /Ox Test.cpp

Output:
Microsoft (R) C/C++ Optimizing Compiler Version 13.10.3077 for .NET Framework
Copyright (C) Microsoft Corporation 1984-2002. All rights reserved.

Test.cpp
c:\documents and settings\kwokmb1\my documents\work\code\test.h(61) : fatal error C1001: INTERNAL COMPILER ERROR
               (compiler file 'f:\vs70builds\3077\vc\Compiler\Utc\src\p2\wvm\mdmiscw.c', line 754)
Please choose the Technical Support command on the Visual C++
Help menu, or open the Technical Support help file for more information

Note: The compiler file they list above does not exist on my system.