Please help with managed array syntax

  • Thread starter Thread starter Roy Chastain
  • Start date Start date
R

Roy Chastain

I have a C# module that defines a type and then makes several arrays
of that type.

public class ArrayEntryType
{ byte member1;
.... ];
public static ArrayEntryType[] array1 = {
new ArrayEntryType(1),
new ArrayEntryType(2)};
public static ArrayEntryType[] array2 = {
new ArrayEntryType(1),
new ArrayEntryType(2)};
etc

Now, in MC++ would like to delcare a static enity that would be an
array of pointers to array1, array2 ... arrayn.

Every combination of defineing the array of pointer to an array that I
try gives me various errors about type conversions etc.

public __gc class ArrayUser {
public:
static ArrayEntryType * (array_ptr_table []) __gc[]; //
this line gives compile error

static ArrayUser (void)
{ array_ptr_table= new ArrayEntryType * [6]; //
note this line needs lots of work
array_ptr_table[0] = &array1;
array_ptr_table[1] = &array2;
}
};

The definition of array_ptr_table is the current problem, but I that
the new will also need help once the definition is correct.

Thanks for you help.
 
Hi Roy!

I also don't know how to correctly solve this problem. However, there are at
least two workarounds I can think of:

1.) If array1, array2, ... are of same size, you could use a 2-dimensional
array:
ArrayEntryType* your2DimArray __gc[,] = __gc new ArrayEntryType[x, y];

2.) You could create an array of Objects, with array1, array2, ... as its
Elements.
Object* yourArray __gc[] = __gc new Object*[x];
yourArray[0] = array1;
yourArray[1] = array2;

To access the subarrays you can cast them back:
ArrayEntryType* arrayN __gc[] = (ArrayEntryType* __gc[]) yourArray[n];

Hope this helps
- Markus
 
Now, in MC++ would like to delcare a static enity that would be an
array of pointers to array1, array2 ... arrayn.
Click to expand...

Hello Roy,

Unfortunately array of array (aka "jagged array") is not implemented in
MC++. The latest internal build of the compiler does support this.

Also, a native array (as opposed to managed array) cannot contain managed
type due to the lack of CLR support.
 
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