[libcxx-commits] [PATCH] D133535: [libc++] Suppress -Wctad-maybe-unsupported on types w/o deduction guides

[Louis Dionne via Phabricator via libcxx-commits]

ldionne created this revision.
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There are a handful of standard library types that are intended
to support CTAD but don't need any explicit deduction guides to
do so.

This patch adds a dummy deduction guide to those types to suppress
-Wctad-maybe-unsupported (which gets emitted in user code).

This is a re-application of the original patch by Eric Fiselier in
fcd549a7d828 which had been reverted due to reasons lost at this point.
I also added the macro to a few more types. Reviving this patch was
prompted by the discussion on https://llvm.org/D133425.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133535

Files:
  libcxx/include/__config
  libcxx/include/__functional/default_searcher.h
  libcxx/include/__iterator/back_insert_iterator.h
  libcxx/include/__iterator/front_insert_iterator.h
  libcxx/include/__iterator/move_iterator.h
  libcxx/include/__mutex_base
  libcxx/include/mutex
  libcxx/include/shared_mutex
  libcxx/include/string_view
  libcxx/test/std/iterators/predef.iterators/insert.iterators/back.insert.iterator/implicit_ctad.pass.cpp
  libcxx/test/std/iterators/predef.iterators/insert.iterators/front.insert.iterator/implicit_ctad.pass.cpp
  libcxx/test/std/iterators/predef.iterators/move.iterators/move.iterator/implicit_ctad.pass.cpp
  libcxx/test/std/strings/string.view/string.view.deduct/implicit.pass.cpp
  libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/implicit_ctad.pass.cpp
  libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.scoped/implicit_ctad.pass.cpp
  libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/implicit_ctad.pass.cpp
  libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.unique/implicit_ctad.pass.cpp
  libcxx/test/std/utilities/function.objects/func.search/func.search.default/implicit_ctad.pass.cpp
  libcxx/utils/libcxx/test/params.py

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