commit 20638cc0d0106fa407699151b62b7b49fd2d93d7
author Arthur O'Dwyer <arthur.j.odwyer@gmail.com> Tue Feb 09 19:12:16 2021 -0500
committer Copybara-Service <copybara-worker@google.com> Thu Mar 25 07:40:34 2021 -0700
tree ad5b2966c915dfe18a97242e335af805578884bb
parent 8d14bd8281fc08b963b5b52ecab03a4229cfa63f

[libc++] [P1032] Misc constexpr bits in <iterator>, <string_view>, <tuple>, <utility>.

This completes the implementation of P1032's changes to <iterator>,
<string_view>, <tuple>, and <utility> in C++20.
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1032r1.html

Drive-by fix a couple of unintended rvalues in "*iterators*/*.fail.cpp".

Differential Revision: https://reviews.llvm.org/D96385

GitOrigin-RevId: 06e2b737aa0347b42e8bf37cb00a053eab0a9393

include/version

diff --git a/include/version b/include/version
index 469f1ce..040d72e 100644
--- a/include/version
+++ b/include/version
@@ -56,7 +56,7 @@
 __cpp_lib_constexpr_iterator                            201811L <iterator>
 __cpp_lib_constexpr_memory                              201811L <memory>
 __cpp_lib_constexpr_numeric                             201911L <numeric>
-__cpp_lib_constexpr_string                              201907L <string>
+__cpp_lib_constexpr_string                              201811L <string>
 __cpp_lib_constexpr_string_view                         201811L <string_view>
 __cpp_lib_constexpr_tuple                               201811L <tuple>
 __cpp_lib_constexpr_utility                             201811L <utility>
@@ -303,12 +303,12 @@
 // # define __cpp_lib_constexpr_complex                    201711L
 # define __cpp_lib_constexpr_dynamic_alloc              201907L
 # define __cpp_lib_constexpr_functional                 201907L
-// # define __cpp_lib_constexpr_iterator                   201811L
+# define __cpp_lib_constexpr_iterator                   201811L
 # define __cpp_lib_constexpr_memory                     201811L
 # define __cpp_lib_constexpr_numeric                    201911L
-// # define __cpp_lib_constexpr_string                     201907L
-// # define __cpp_lib_constexpr_string_view                201811L
-// # define __cpp_lib_constexpr_tuple                      201811L
+# define __cpp_lib_constexpr_string                     201811L
+# define __cpp_lib_constexpr_string_view                201811L
+# define __cpp_lib_constexpr_tuple                      201811L
 # define __cpp_lib_constexpr_utility                    201811L
 // # define __cpp_lib_constexpr_vector                     201907L
 // # define __cpp_lib_coroutine                            201902L