Export of internal Abseil changes

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e1d2e93a3328d9e4362c5510e81bd15ddd0dcf00 by Derek Mauro <dmauro@google.com>:

ROLLBACK: Use auto-detected sanitizer attributes for ASAN, MSAN, and TSAN builds

PiperOrigin-RevId: 323612219

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6fe0914715bcb680ac1dc533aae3461e2ca1ad50 by Derek Mauro <dmauro@google.com>:

Use auto-detected sanitizer attributes for ASAN, MSAN, and TSAN builds

PiperOrigin-RevId: 323597765

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9ad74e277348585f06a511aac31fff917a89a5d7 by Mark Barolak <mbar@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 323594550

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9e77ccb5adf7e9867cfa254105930f8fed19699d by Evan Brown <ezb@google.com>:

Remove an unnecessary nullptr check in Cord::PrependTree().

We already check for nullptr at all callsites.

PiperOrigin-RevId: 323583641

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31ab2355c1b91e474b67ff88b8597ad99f346511 by Gennadiy Rozental <rogeeff@google.com>:

Avoid memory allocations while registering retired flags.

PiperOrigin-RevId: 323523011

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33435e9b97b31763a80d3e41b5ab2459e862e99a by Jorg Brown <jorg@google.com>:

Allow ABSL_PREDICT_FALSE to be used with a type that's explicitly convertible to bool.

So far ABSL_PREDICT_TRUE could be used with these, but not ABSL_PREDICT_FALSE.

PiperOrigin-RevId: 323514860
GitOrigin-RevId: e1d2e93a3328d9e4362c5510e81bd15ddd0dcf00
Change-Id: Iee5b030d9aec1ae2c0fe8997763cee7bd84b4090

2 files changed, 6 insertions, 8 deletions

diff --git a/absl/time/internal/cctz/src/time_zone_info.cc b/absl/time/internal/cctz/src/time_zone_info.cc
index c7bf0447..8039353e 100644
--- a/absl/time/internal/cctz/src/time_zone_info.cc
+++ b/absl/time/internal/cctz/src/time_zone_info.cc
@@ -295,7 +295,7 @@ bool TimeZoneInfo::EquivTransitions(std::uint_fast8_t tt1_index,
 // Find/make a transition type with these attributes.
 bool TimeZoneInfo::GetTransitionType(std::int_fast32_t utc_offset, bool is_dst,
                                      const std::string& abbr,
-                                     std::uint_fast8_t* index) {
+                                     std::uint_least8_t* index) {
   std::size_t type_index = 0;
   std::size_t abbr_index = abbreviations_.size();
   for (; type_index != transition_types_.size(); ++type_index) {
@@ -334,7 +334,7 @@ bool TimeZoneInfo::ExtendTransitions() {
   if (!ParsePosixSpec(future_spec_, &posix)) return false;
 
   // Find transition type for the future std specification.
-  std::uint_fast8_t std_ti;
+  std::uint_least8_t std_ti;
   if (!GetTransitionType(posix.std_offset, false, posix.std_abbr, &std_ti))
     return false;
 
@@ -345,7 +345,7 @@ bool TimeZoneInfo::ExtendTransitions() {
   }
 
   // Find transition type for the future dst specification.
-  std::uint_fast8_t dst_ti;
+  std::uint_least8_t dst_ti;
   if (!GetTransitionType(posix.dst_offset, true, posix.dst_abbr, &dst_ti))
     return false;
 
@@ -365,10 +365,8 @@ bool TimeZoneInfo::ExtendTransitions() {
   std::int_fast64_t jan1_time = jan1 - civil_second();
   int jan1_weekday = ToPosixWeekday(get_weekday(jan1));
 
-  Transition dst = {0, static_cast<uint_least8_t>(dst_ti), civil_second(),
-                    civil_second()};
-  Transition std = {0, static_cast<uint_least8_t>(std_ti), civil_second(),
-                    civil_second()};
+  Transition dst = {0, dst_ti, civil_second(), civil_second()};
+  Transition std = {0, std_ti, civil_second(), civil_second()};
   for (const year_t limit = last_year_ + 400;; ++last_year_) {
     auto dst_trans_off = TransOffset(leap_year, jan1_weekday, posix.dst_start);
     auto std_trans_off = TransOffset(leap_year, jan1_weekday, posix.dst_end);
diff --git a/absl/time/internal/cctz/src/time_zone_info.h b/absl/time/internal/cctz/src/time_zone_info.h
index 068e34be..2467ff55 100644
--- a/absl/time/internal/cctz/src/time_zone_info.h
+++ b/absl/time/internal/cctz/src/time_zone_info.h
@@ -96,7 +96,7 @@ class TimeZoneInfo : public TimeZoneIf {
   };
 
   bool GetTransitionType(std::int_fast32_t utc_offset, bool is_dst,
-                         const std::string& abbr, std::uint_fast8_t* index);
+                         const std::string& abbr, std::uint_least8_t* index);
   bool EquivTransitions(std::uint_fast8_t tt1_index,
                         std::uint_fast8_t tt2_index) const;
   bool ExtendTransitions();