Export of internal Abseil changes

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b842b7fd9b1289be31f0b7ee8e62e48e550747cf by Greg Falcon <gfalcon@google.com>:

Change the Cord str_format formatter to use iteration instead of CordReader.

When Cord is publicly released, CordReader is not going with it.

PiperOrigin-RevId: 284780736

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28e76c08ea7185a7ff9f4e0e02ae565fbbf7980f by Greg Falcon <gfalcon@google.com>:

Implementation detail change.

Introduce ABSL_NAMESPACE_BEGIN and _END annotation macros which indicate the beginning and end of a `namespace absl` scope.  Currently these do nothing, but they will be used to inject an inline namespace for LTS builds (to avoid symbol collisions against other Abseil versions).

These macros should not be used by end users, because end users should never write `namespace absl {` in their own code.

This CL applies these annotations to all code under //absl/base/.  The rest of Abseil will be annotated in this way in follow-up CLs.

PiperOrigin-RevId: 284776410

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e1711dc6d696dcca50d4e7d4b4d8f3076575b7ec by Abseil Team <absl-team@google.com>:

--help changed to report long flags.

PiperOrigin-RevId: 284757720

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78f66a68f428bbbd19d8d60e1125f43ba765fd35 by Tom Manshreck <shreck@google.com>:

Update comment on + or - in SimpleAToi()

PiperOrigin-RevId: 284231843
GitOrigin-RevId: b842b7fd9b1289be31f0b7ee8e62e48e550747cf
Change-Id: I3046b31391bd11c8bc4abab7785a863c377cd757

2 files changed, 36 insertions, 36 deletions

diff --git a/absl/flags/internal/usage.cc b/absl/flags/internal/usage.cc
index 181c35c61901..dc12e32f04cb 100644
--- a/absl/flags/internal/usage.cc
+++ b/absl/flags/internal/usage.cc
@@ -200,7 +200,7 @@ void FlagHelpHumanReadable(const flags_internal::CommandLineFlag& flag,
   FlagHelpPrettyPrinter printer(80, out);  // Max line length is 80.
 
   // Flag name.
-  printer.Write(absl::StrCat("-", flag.Name()));
+  printer.Write(absl::StrCat("--", flag.Name()));
 
   // Flag help.
   printer.Write(absl::StrCat("(", flag.Help(), ");"), /*wrap_line=*/true);
diff --git a/absl/flags/internal/usage_test.cc b/absl/flags/internal/usage_test.cc
index d15e44847ffb..1e9ffdf70ba5 100644
--- a/absl/flags/internal/usage_test.cc
+++ b/absl/flags/internal/usage_test.cc
@@ -111,7 +111,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_01) {
   flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable);
   EXPECT_EQ(
       test_buf.str(),
-      R"(    -usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
+      R"(    --usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
       default: 101;
 )");
 }
@@ -123,7 +123,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_02) {
   flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable);
   EXPECT_EQ(
       test_buf.str(),
-      R"(    -usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
+      R"(    --usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
       default: false;
 )");
 }
@@ -135,7 +135,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_03) {
   flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable);
   EXPECT_EQ(
       test_buf.str(),
-      R"(    -usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
+      R"(    --usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
       default: 1.03;
 )");
 }
@@ -147,7 +147,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_04) {
   flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable);
   EXPECT_EQ(
       test_buf.str(),
-      R"(    -usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
+      R"(    --usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
       default: 1000000000000004;
 )");
 }
@@ -159,7 +159,7 @@ TEST_F(UsageReportingTest, TestFlagHelpHRF_on_flag_05) {
   flags::FlagHelp(test_buf, *flag, flags::HelpFormat::kHumanReadable);
   EXPECT_EQ(
       test_buf.str(),
-      R"(    -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
+      R"(    --usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
 )");
 }
@@ -171,17 +171,17 @@ TEST_F(UsageReportingTest, TestFlagsHelpHRF) {
       R"(usage_test: Custom usage message
 
   Flags from absl/flags/internal/usage_test.cc:
-    -usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
+    --usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
       default: 101;
-    -usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
+    --usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
       default: false;
-    -usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
+    --usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
       default: 1.03;
-    -usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
+    --usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
       default: 1000000000000004;
-    -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
+    --usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
-    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+    --usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
 
       Some more help.
       Even more long long long long long long long long long long long long help
@@ -247,17 +247,17 @@ TEST_F(UsageReportingTest, TestUsageFlag_helpshort) {
             R"(usage_test: Custom usage message
 
   Flags from absl/flags/internal/usage_test.cc:
-    -usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
+    --usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
       default: 101;
-    -usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
+    --usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
       default: false;
-    -usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
+    --usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
       default: 1.03;
-    -usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
+    --usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
       default: 1000000000000004;
-    -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
+    --usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
-    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+    --usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
 
       Some more help.
       Even more long long long long long long long long long long long long help
@@ -276,17 +276,17 @@ TEST_F(UsageReportingTest, TestUsageFlag_help) {
             R"(usage_test: Custom usage message
 
   Flags from absl/flags/internal/usage_test.cc:
-    -usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
+    --usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
       default: 101;
-    -usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
+    --usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
       default: false;
-    -usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
+    --usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
       default: 1.03;
-    -usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
+    --usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
       default: 1000000000000004;
-    -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
+    --usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
-    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+    --usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
 
       Some more help.
       Even more long long long long long long long long long long long long help
@@ -307,17 +307,17 @@ TEST_F(UsageReportingTest, TestUsageFlag_helppackage) {
             R"(usage_test: Custom usage message
 
   Flags from absl/flags/internal/usage_test.cc:
-    -usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
+    --usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
       default: 101;
-    -usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
+    --usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
       default: false;
-    -usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
+    --usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
       default: 1.03;
-    -usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
+    --usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
       default: 1000000000000004;
-    -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
+    --usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
-    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+    --usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
 
       Some more help.
       Even more long long long long long long long long long long long long help
@@ -372,17 +372,17 @@ TEST_F(UsageReportingTest, TestUsageFlag_helpon) {
             R"(usage_test: Custom usage message
 
   Flags from absl/flags/internal/usage_test.cc:
-    -usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
+    --usage_reporting_test_flag_01 (usage_reporting_test_flag_01 help message);
       default: 101;
-    -usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
+    --usage_reporting_test_flag_02 (usage_reporting_test_flag_02 help message);
       default: false;
-    -usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
+    --usage_reporting_test_flag_03 (usage_reporting_test_flag_03 help message);
       default: 1.03;
-    -usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
+    --usage_reporting_test_flag_04 (usage_reporting_test_flag_04 help message);
       default: 1000000000000004;
-    -usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
+    --usage_reporting_test_flag_05 (usage_reporting_test_flag_05 help message);
       default: UDT{};
-    -usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
+    --usage_reporting_test_flag_06 (usage_reporting_test_flag_06 help message.
 
       Some more help.
       Even more long long long long long long long long long long long long help