Export of internal Abseil changes.

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7fb969986d7d5a1b30233a94ae7ea29e1abf8937 by Greg Falcon <gfalcon@google.com>:

Fix whitespace in str_join.h.

PiperOrigin-RevId: 208082852

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85428003a8a29fbcd92c0b48708a69460eeb0e8f by Abseil Team <absl-team@google.com>:

Add missing back-ticks to the comments.

PiperOrigin-RevId: 207985417

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0bbac248d5649ac1d7bc71ff1025a11332fb2026 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 207927484

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f587324b99570b403b4626fb03fce16f0d950b05 by Abseil Team <absl-team@google.com>:

Update BaseCountedInstance to have comparison operators and allow them to be tracked by InstanceTracker.

PiperOrigin-RevId: 207919218

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d7f410e4f15328412941f16e25ba3735d5bdfda6 by Derek Mauro <dmauro@google.com>:

Internal import of GitHub PR #153
Removed "warning treated as error" flag from MSVC

PiperOrigin-RevId: 207908806

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59eefc78f8571ffc51cb636894015ce2580508d7 by Abseil Team <absl-team@google.com>:

Fix namespace references in examples from 'std::' to 'absl::'.

PiperOrigin-RevId: 207895230

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151df17b6544222e29913b034a1296c0e14374d5 by Abseil Team <absl-team@google.com>:

Internal Change

PiperOrigin-RevId: 207894949
GitOrigin-RevId: 7fb969986d7d5a1b30233a94ae7ea29e1abf8937
Change-Id: I00097afbe9610ddb3f2330a2a86dcffde7bb6675

2 files changed, 13 insertions, 2 deletions

diff --git a/absl/types/BUILD.bazel b/absl/types/BUILD.bazel
index 096c119e..7841a97d 100644
--- a/absl/types/BUILD.bazel
+++ b/absl/types/BUILD.bazel
@@ -19,6 +19,7 @@ load(
     "ABSL_DEFAULT_COPTS",
     "ABSL_TEST_COPTS",
     "ABSL_EXCEPTIONS_FLAG",
+    "ABSL_EXCEPTIONS_FLAG_LINKOPTS",
 )
 
 package(default_visibility = ["//visibility:public"])
@@ -55,6 +56,7 @@ cc_library(
         "bad_any_cast.h",
     ],
     copts = ABSL_EXCEPTIONS_FLAG + ABSL_DEFAULT_COPTS,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     visibility = ["//visibility:private"],
     deps = [
         "//absl/base",
@@ -69,6 +71,7 @@ cc_test(
         "any_test.cc",
     ],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":any",
         "//absl/base",
@@ -100,6 +103,7 @@ cc_test(
     name = "any_exception_safety_test",
     srcs = ["any_exception_safety_test.cc"],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":any",
         "//absl/base:exception_safety_testing",
@@ -124,6 +128,7 @@ cc_test(
     size = "small",
     srcs = ["span_test.cc"],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":span",
         "//absl/base:config",
@@ -172,6 +177,7 @@ cc_library(
     srcs = ["bad_optional_access.cc"],
     hdrs = ["bad_optional_access.h"],
     copts = ABSL_DEFAULT_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         "//absl/base",
         "//absl/base:config",
@@ -183,6 +189,7 @@ cc_library(
     srcs = ["bad_variant_access.cc"],
     hdrs = ["bad_variant_access.h"],
     copts = ABSL_EXCEPTIONS_FLAG + ABSL_DEFAULT_COPTS,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         "//absl/base",
         "//absl/base:config",
@@ -196,6 +203,7 @@ cc_test(
         "optional_test.cc",
     ],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":optional",
         "//absl/base",
@@ -212,6 +220,7 @@ cc_test(
         "optional_exception_safety_test.cc",
     ],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":optional",
         "//absl/base:exception_safety_testing",
@@ -239,6 +248,7 @@ cc_test(
     size = "small",
     srcs = ["variant_test.cc"],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":variant",
         "//absl/base:config",
@@ -271,6 +281,7 @@ cc_test(
         "variant_exception_safety_test.cc",
     ],
     copts = ABSL_TEST_COPTS + ABSL_EXCEPTIONS_FLAG,
+    linkopts = ABSL_EXCEPTIONS_FLAG_LINKOPTS,
     deps = [
         ":variant",
         "//absl/base:exception_safety_testing",
diff --git a/absl/types/variant.h b/absl/types/variant.h
index 17e0634d..2f78722f 100644
--- a/absl/types/variant.h
+++ b/absl/types/variant.h
@@ -414,9 +414,9 @@ constexpr absl::add_pointer_t<const T> get_if(
 //   };
 //
 //   // Declare our variant, and call `absl::visit()` on it.
-//   std::variant<int, std::string> foo = std::string("foo");
+//   absl::variant<int, std::string> foo = std::string("foo");
 //   GetVariant visitor;
-//   std::visit(visitor, foo);  // Prints `The variant's value is: foo'
+//   absl::visit(visitor, foo);  // Prints `The variant's value is: foo'
 template <typename Visitor, typename... Variants>
 variant_internal::VisitResult<Visitor, Variants...> visit(Visitor&& vis,
                                                           Variants&&... vars) {