Export of internal Abseil changes

--
d447fdcb801036cf08197eece193a5a706661120 by Gennadiy Rozental <rogeeff@google.com>:

Eliminate the need for static function holding help message. This decreases the cost of ABSL_FLAG abstraction by 120 bytes under clang.

PiperOrigin-RevId: 281107806

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0aa6b91189f0e8b2381438c33465673a7ae02487 by Derek Mauro <dmauro@google.com>:

Disable the weak symbol CCTZ extension in the time test_util
on MinGW, which does not support it.

PiperOrigin-RevId: 280719769

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67322c41c3e776eb541de90fa4526bdb49422eb6 by Abseil Team <absl-team@google.com>:

Tune PeriodicSampler implementation (for internal-use only)

PiperOrigin-RevId: 280708943

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3a48c346340c7ed03816645cd327e1ff07729aa4 by Abseil Team <absl-team@google.com>:

Clean up public headers not to have warnings for "-Wcomma"

PiperOrigin-RevId: 280695373

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981acd1ef3b13a83a84f04f11c8931f4ed4451c9 by Matthew Brown <matthewbr@google.com>:

Release absl::int128.

PiperOrigin-RevId: 280690817

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d30fae9d2ec30b81322d2eb5afe7e13e45b4b422 by Derek Mauro <dmauro@google.com>:

Fix -Wundef warnings in random platform detection

PiperOrigin-RevId: 280669598
GitOrigin-RevId: d447fdcb801036cf08197eece193a5a706661120
Change-Id: Ie5e10e567c54b7de211833607689f233d4ddf734

1 files changed, 10 insertions, 7 deletions

diff --git a/absl/flags/flag_test.cc b/absl/flags/flag_test.cc
index 59dc579ce029..4e08da8589a5 100644
--- a/absl/flags/flag_test.cc
+++ b/absl/flags/flag_test.cc
@@ -32,7 +32,7 @@ namespace {
 
 namespace flags = absl::flags_internal;
 
-std::string TestHelpMsg() { return "help"; }
+std::string TestHelpMsg() { return "dynamic help"; }
 template <typename T>
 void* TestMakeDflt() {
   return new T{};
@@ -41,19 +41,22 @@ void TestCallback() {}
 
 template <typename T>
 bool TestConstructionFor() {
-  constexpr flags::Flag<T> f1("f1", &TestHelpMsg, "file",
+  constexpr flags::HelpInitArg help_arg{flags::FlagHelpSrc("literal help"),
+                                        flags::FlagHelpSrcKind::kLiteral};
+  constexpr flags::Flag<T> f1("f1", help_arg, "file",
                               &flags::FlagMarshallingOps<T>, &TestMakeDflt<T>);
   EXPECT_EQ(f1.Name(), "f1");
-  EXPECT_EQ(f1.Help(), "help");
+  EXPECT_EQ(f1.Help(), "literal help");
   EXPECT_EQ(f1.Filename(), "file");
 
-  ABSL_CONST_INIT static flags::Flag<T> f2("f2", &TestHelpMsg, "file",
-                                           &flags::FlagMarshallingOps<T>,
-                                           &TestMakeDflt<T>);
+  ABSL_CONST_INIT static flags::Flag<T> f2(
+      "f2",
+      {flags::FlagHelpSrc(&TestHelpMsg), flags::FlagHelpSrcKind::kGenFunc},
+      "file", &flags::FlagMarshallingOps<T>, &TestMakeDflt<T>);
   flags::FlagRegistrar<T, false>(&f2).OnUpdate(TestCallback);
 
   EXPECT_EQ(f2.Name(), "f2");
-  EXPECT_EQ(f2.Help(), "help");
+  EXPECT_EQ(f2.Help(), "dynamic help");
   EXPECT_EQ(f2.Filename(), "file");
 
   return true;