souchaud wrote:
I am using mico 2.3.12, and I have got a problem with extracting an
object from an Any, the problem occurs if the structure of the object
contains a string. If I do the same exemple with a long inside the
structure instead of a string, it works. If I use omniORB, there is no
problem, the object can be extracted.
Here is the source code that explain the problem :
echo.idl:
struct MyStruct {
string data;
};
interface Echo {
any test();
};
server.cc:
CORBA::Any * Echo_impl::test()
{
CORBA::Any * any = new CORBA::Any();
MyStruct * s = new MyStruct();
s->data = "hep"; // I don't know if it need to use
"CORBA::string_dup", anyway it does not work with it as well.
*any <<= s;
return any;
}
client.cc:
...
CORBA::Any * any = echo->test();
const MyStruct * seq;
bool ok = (*any) >>= seq; // <----- ok == false
...
Thanks for your help,
Mathieu Souchaud
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Hello,
I have seen the MICO exemple in the directory mico2.3.12/test/idl/14/ that is
quite similar to my code;
So, I have changed a little bit my source code and it's work :
client.cc:
---------
...
CORBA::Any * any = echo->test();
MyStruct seq; // instead of : const MyStruct * seq;
bool ok = (*any) >>= seq; // <----- ok == true
...
But the problem remains still, because I would like that my program can use
MICO or OmniORB without putting #ifdef everywhere..
Furthermore, I suppose the first solution (const MyStruct * seq) is better
cause it should avoid a copy.
I took a look at the echo.hh file generated from the echo.idl. Why there are differences between MICO and OmniORB? CORBA do not propose a standard
interface for the idl to c++ mapping?
echo.hh (MICO):
--------------
CORBA::Boolean operator>>=( const CORBA::Any &_a, ::MyStruct &_s );
CORBA::Boolean operator>>=( const CORBA::Any &_a, const ::MyStruct *&_s );
echo.hh (OmniORB):
-----------------
CORBA::Boolean operator>>=(const CORBA::Any& _a, MyStruct*& _sp);
CORBA::Boolean operator>>=(const CORBA::Any& _a, const MyStruct*& _sp);
Sorry for my poor english..
Thanks in advance for your help,
Mathieu Souchaud
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