Issue 497:  Legal IDL cannot map to C++ (cxx_revision)
Source:  (, )
Nature:  Uncategorized
Severity: 
Summary: Summary: Generated C++ (example) ends up with redefinition errors. This is not addressed in current C++ mapping. Options are to amend IDL or to simply state that such IDL cannot be translated.

Resolution: close with no change
Revised Text: 
Actions taken:
February 5, 1997: received issue
June 13, 2000: closed issue
Discussion: 
Close with no change. It's ugly to have these name clashes in the mapping, but the steps required to fix this aren't pretty either,
and the name clash is rarely (never?) a problem in practice.

End of Annotations:=====

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Date: Wed, 5 Feb 1997 12:54:04 +1000 (EST)
From: Michi Henning <michi@dstc.edu.au>
To: cxx_revision@omg.org
Subject: Legal IDL cannot map to C++
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The following is legal IDL, but cannot be mapped into C++:

interface foo {
        // ...
};

interface foo_var {
        // ...
};

interface foo_ptr {
        // ...
};

Clearly, the generated C++ ends up with lots of redefinition errors.
This is not addressed in the current C++ mapping.

It is difficult to see a way around this problem. One option is to
amend
IDL to state that if a specification contains an identifier X, then
identifiers X_var and X_ptr cannot be used (there are others,
depending
on circumstances, such as X_forany).           


The other option would be to simply state that such IDL cannot be
translated.

Regardless, the C++ mapping should at least address these issues
instead
of ignoring them.

                                                                Michi.
--
Michi Henning              +61 7 33654310
DSTC Pty Ltd               +61 7 33654311 (fax)
University of Qld 4072     michi@dstc.edu.au
                                                                          


This is issue # 497


Legal IDL cannot map to C++

Generated C++ (example) ends up with redefinition errors. This is 
          not addressed in current C++ mapping. Options are to amend IDL or 
          to simply state that such IDL cannot be translated.    


-Juergen