I don't expect user code to be influenced by this as much as the actual runtime implementation.

Although the differences in PMFs could require different behaviors, I think that encouraging users to use more portable code is preferable.

As to examples of the runtime changing would be the implementation of std::type_info.


On Sun, Jan 8, 2017 at 12:57 AM Jens Maurer <Jens.Maurer@gmx.net> wrote:
On 01/07/2017 10:39 PM, Saleem Abdulrasool wrote:

> As to your point of how the language runtime/ABI library would be influenced by this is exactly the motivation for this!



I'm sorry, could I please see user code that would plausibly

depend on an ABI switch?



Our existing #defines are rather fine-grained; I'm wondering whether

a broad ABI switch is adequate for the use-cases.



Jens