[libcxx-commits] [PATCH] D110503: [libc++] Implement P1394r4 for span: range constructor

[Joe Loser via Phabricator via libcxx-commits]

jloser created this revision.
jloser added reviewers: ldionne, Quuxplusone, cjdb.
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Implement https://wg21.link/p1394 which allows span to be constructible
from any contiguous forwarding-range that has a compatible element type.
This also fixes non-conforming constructors for ptr/len and ptr/ptr
favor of iterator/len and iterator/iterator constructors.

Fixes https://bugs.llvm.org/show_bug.cgi?id=51443


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D110503

Files:
  libcxx/include/span
  libcxx/test/std/containers/views/span.cons/container.fail.cpp
  libcxx/test/std/containers/views/span.cons/container.pass.cpp
  libcxx/test/std/containers/views/span.cons/deduct.pass.cpp
  libcxx/test/std/containers/views/span.cons/iterator_iterator.fail.cpp
  libcxx/test/std/containers/views/span.cons/iterator_iterator.pass.cpp
  libcxx/test/std/containers/views/span.cons/iterator_len.fail.cpp
  libcxx/test/std/containers/views/span.cons/iterator_len.pass.cpp
  libcxx/test/std/containers/views/span.cons/ptr_len.fail.cpp
  libcxx/test/std/containers/views/span.cons/ptr_len.pass.cpp
  libcxx/test/std/containers/views/span.cons/ptr_ptr.fail.cpp
  libcxx/test/std/containers/views/span.cons/ptr_ptr.pass.cpp
  libcxx/test/std/containers/views/span.cons/range.fail.cpp
  libcxx/test/std/containers/views/span.cons/range.pass.cpp
  libcxx/test/std/containers/views/span.cons/simple_range.h

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