IDL compiler is complaining about my circular structure reference

[energie]

here's a snipplet of what i want to specify in my IDL:

typedef struct prop
{
wstring name
propCollection childProps;
} structA_TYPE;

typedef struct propCollection
{
sequence<prop> nProperties;
} propCollection_TYPE;

my C++ idl compiler is complaining that

propCollection childProps;

in the &quot;prop struct&quot; to be undefined. If i move the &quot;propCollection struct&quot; to be above the &quot;prop struct&quot; defination, the opposite will happen.

is there anyway to get around this?

 

[Cagliostro]

You forgot about forward declarations

struct propCollection;
typedef struct prop
{
wstring name
propCollection childProps;
} structA_TYPE;

typedef struct propCollection
{
sequence<prop> nProperties;
} propCollection_TYPE;

Ion Filipski

filipski@excite.com

 

[energie]

thanks for your reply

I wish it was that easy tho.

the c++ idl comipler that im using complains about forward declaration on structures. I've looked into and it seems like they only support forward declaration on interfaces.

Is that the case?

 

[Cagliostro]

It is about forward declarations. CORBA IDL is based on C++.

Ion Filipski

filipski@excite.com

 

[energie]

CORBA IDL does NOT support forward declaration on structures. It says so in many many books as well as my compiler.