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digitalmars.D.bugs - [Issue 1687] New: "extern (C++) interface" and vtbl

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1687

           Summary: "extern (C++) interface" and vtbl
           Product: D
           Version: unspecified
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P3
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: niqbmozgvx mailinator.com


cpp_interface.html:

 a D interface with the attribute of extern (C++) will have a virtual function
 pointer table (vtbl[]) that exactly matches C++'s [...] in C++ the first
 entry points to the first virtual function.


extern (C++) interface A { void foo(); void bar(); }
A a = ...;

So calling a.foo() should call vtbl[0], instead D calls vtbl[1] as if it where
a normal D interface.


--
Nov 23 2007
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1687






*** Bug 1688 has been marked as a duplicate of this bug. ***


--
Nov 23 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1687






BTW this functionality of an interface, in which the slot 0 of the vtable[] is
NOT used by a ClassInfo pointer, is needed for a lot of interfaces in the
windows header files which are NOT derived from IUnknown. Mainly the whole
DirectX 10 part.


--
Nov 24 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1687


niqbmozgvx mailinator.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |major
            Version|unspecified                 |1.026




--
Jan 07 2008
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=1687


Igor Stepanov <wazar.leollone yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wazar.leollone yahoo.com



08:20:35 PDT ---


 BTW this functionality of an interface, in which the slot 0 of the vtable[] is
 NOT used by a ClassInfo pointer, is needed for a lot of interfaces in the
 windows header files which are NOT derived from IUnknown. Mainly the whole
 DirectX 10 part.


PING. Do this issue is invalid?

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