[PATCH] D128745: [c++] implements DR692, DR1395 and tentatively DR1432, about partial ordering of variadic template partial specialization or function template
Hubert Tong via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Tue Oct 11 14:06:00 PDT 2022
hubert.reinterpretcast added a comment.
In D128745#3834435 <https://reviews.llvm.org/D128745#3834435>, @ychen wrote:
> New flag or not, as long as we allow users to use the old behavior, it is already fracturing the ecosystem. Do you mean (1) we shouldn't give the user the choices or (2) we allow users to use the old behavior but only for a few releases and then remove the flag? I think (1) is a little bit harsh but I would not say it is disruptive. (2) is more user-friendly.
(1) has been the default absent information to indicate that the new behaviour is not ready for deployment (because it would cause widespread disruption). To consider alternatives would require information about the nature of the deployment difficulties.
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