Export of internal Abseil changes

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8e04df6fcbd062e5eaf179a6ec9b0a26f8aa8a39 by Abseil Team <absl-team@google.com>:

Use a floating point type for the example usage of absl::uniform_real_distribution.

PiperOrigin-RevId: 271167776

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5f8f1dfea50bc16a9d9af3e50c4636500a938b29 by Abseil Team <absl-team@google.com>:

the llvm wasm backend does not support this data symbol in text section, so remove it from the test.

PiperOrigin-RevId: 271138100

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2874542cb212962ac3093fd78fd5e1eb85c126c0 by Xiaoyi Zhang <zhangxy@google.com>:

Work around MSVC 2019 compiler bug related to constexpr in optional_test.
The change in optional_test is necessary to avoid another bug on MSVC
complaining about accessing invalid member of union, and also makes the test
more reasonale by checking the value of a non-static member.

Filed a bug against MSVC
https://developercommunity.visualstudio.com/content/problem/743998/internal-compiler-error-related-to-constexpr-and-u.html.

PiperOrigin-RevId: 271129805

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3a5d56f0c3362aabf68938fb95c4e2d3eca59538 by Abseil Team <absl-team@google.com>:

Improve precision of absl::GetCurrentTimeNanos() by adjusting
cycle time sooner.

PiperOrigin-RevId: 271007945

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1e044a6dec7c0ca150fff1aee52dbdb16aa43ed7 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 270962690
GitOrigin-RevId: 8e04df6fcbd062e5eaf179a6ec9b0a26f8aa8a39
Change-Id: Icb05423a7e93ebdae16baadd59a60b75b5cfa249

2 files changed, 5 insertions, 5 deletions

diff --git a/absl/types/internal/optional.h b/absl/types/internal/optional.h
index 8acbda20..d41ccc75 100644
--- a/absl/types/internal/optional.h
+++ b/absl/types/internal/optional.h
@@ -84,8 +84,8 @@ class optional_data_dtor_base {
   bool engaged_;
   // Data storage
   union {
-    dummy_type dummy_;
     T data_;
+    dummy_type dummy_;
   };
 
   void destruct() noexcept {
@@ -119,8 +119,8 @@ class optional_data_dtor_base<T, true> {
   bool engaged_;
   // Data storage
   union {
-    dummy_type dummy_;
     T data_;
+    dummy_type dummy_;
   };
   void destruct() noexcept { engaged_ = false; }
 
diff --git a/absl/types/optional_test.cc b/absl/types/optional_test.cc
index e005affb..35efa863 100644
--- a/absl/types/optional_test.cc
+++ b/absl/types/optional_test.cc
@@ -944,7 +944,7 @@ TEST(optionalTest, Swap) {
 
 template <int v>
 struct DeletedOpAddr {
-  constexpr static const int value = v;
+  int value = v;
   constexpr DeletedOpAddr() = default;
   constexpr const DeletedOpAddr<v>* operator&() const = delete;  // NOLINT
   DeletedOpAddr<v>* operator&() = delete;                        // NOLINT
@@ -954,9 +954,9 @@ struct DeletedOpAddr {
 // to document the fact that the current implementation of absl::optional<T>
 // expects such usecases to be malformed and not compile.
 TEST(optionalTest, OperatorAddr) {
-  constexpr const int v = -1;
+  constexpr int v = -1;
   {  // constexpr
-    constexpr const absl::optional<DeletedOpAddr<v>> opt(absl::in_place_t{});
+    constexpr absl::optional<DeletedOpAddr<v>> opt(absl::in_place_t{});
     static_assert(opt.has_value(), "");
     // static_assert(opt->value == v, "");
     static_assert((*opt).value == v, "");