The CORBA ORB_var string_to_object function is used in C++ programming to create a reference to a CORBA object from a string representation of the object's IOR (Interoperable Object Reference). This function is defined in the CORBA namespace and requires the inclusion of the CORBA library.
Code example:
```c++
#include
#include
using namespace std;
int main(int argc, char** argv) {
CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);
if (orb == CORBA::ORB::_nil()) {
cerr << "Failed to initialize the ORB" << endl;
return 1;
}
CORBA::Object_var obj = orb->string_to_object("IOR:0123456789ABCDEF");
if (obj == CORBA::Object::_nil()) {
cerr << "Failed to create object reference" << endl;
return 1;
}
// Use the object reference
// ...
return 0;
}
```
In this example, the CORBA ORB is initialized and then used to create an object reference from the string representation "IOR:0123456789ABCDEF". The resulting object reference is then checked to ensure it was successfully created before being used further in the program.
The package library for this functionality is typically the "omniORB" library, which is a popular open-source implementation of the CORBA standard for C++ and Python programming languages.
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