[PATCH] [libcxxabi] Fix multi-level pointer conversions and pointer to member conversion detection.

[Jonathan Roelofs]

On 3/31/15 8:53 PM, Eric Fiselier wrote:
> Hi mclow.lists, danalbert, compnerd,
>
> Currently there are bugs in out detection of multi-level pointer conversions and pointer to member conversions. This patch fixes the following issues.
>
> * Allow multi-level pointers with different nested qualifiers.

Humph, I thought I had exhaustively tested that clause in 
test/catch_pointer_reference.cpp

Guess not.


Jon

> * Allow multi-level mixed pointers to objects and pointers to members with different nested qualifiers.
> * Allow conversions from `int Base::*` to `int Derived::*` but only for non-nested pointers.
>
> There is still some work that needs to be done to clean this patch up but I want to get some input on it.
> Open questions:
>
> * Does `__pointer_to_member_type_info::can_catch(...)` need to adjust the pointer if a base to derived conversion is performed?
>
> http://reviews.llvm.org/D8758
>
> Files:
>    src/private_typeinfo.cpp
>    src/private_typeinfo.h
>    test/catch_member_data_pointer_01.pass.cpp
>    test/catch_pointer_nullptr.pass.cpp
>
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-- 
Jon Roelofs
jonathan at codesourcery.com
CodeSourcery / Mentor Embedded