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Re: C++ Patch (Was: Virtual Mem Func Ptr Call Fails When Base Class Has No Vtable)

To: Mark Mitchell <mark at codesourcery dot com>
Subject: Re: C++ Patch (Was: Virtual Mem Func Ptr Call Fails When Base Class Has No Vtable)
From: Jason Merrill <jason at cygnus dot com>
Date: 15 Sep 1999 12:07:33 -0700
Cc: martin at mira dot isdn dot cs dot tu-berlin dot de, mrs at wrs dot com, gcc-patches at gcc dot gnu dot org, oliva at lsd dot ic dot unicamp dot br, andrew dot bell at bigfoot dot com, bug-gcc at gcc dot gnu dot org
References: <199909150014.RAA17491@kankakee.wrs.com> <199909150805.KAA22191@mira.isdn.cs.tu-berlin.de> <19990915074410R.mitchell@codesourcery.com> <u9aeqogg3o.fsf@yorick.cygnus.com>

>>>>> Jason Merrill <jason@cygnus.com> writes:

 >  The null member pointer value (conv.mem) is converted to the null member
 >  pointer value of the destination type. If class B contains the original
 >  member, or is a base or derived class of the class containing the original
 >  member, the resulting pointer to member points to the original
 >  member. Otherwise, the result of the cast is undefined.

Sorry, I can't read.  "or is a base...class" does it.  Never mind...

Jason

References:
- Re: Virtual Mem Func Ptr Call Fails When Base Class Has No Vtable
  - From: Mike Stump
- C++ Patch (Was: Virtual Mem Func Ptr Call Fails When Base Class Has No Vtable)
  - From: Martin v. Loewis
- Re: C++ Patch (Was: Virtual Mem Func Ptr Call Fails When BaseClass Has No Vtable)
  - From: Mark Mitchell
- Re: C++ Patch (Was: Virtual Mem Func Ptr Call Fails When Base Class Has No Vtable)
  - From: Jason Merrill

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