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

1 files changed, 22 insertions, 0 deletions

diff --git a/absl/container/internal/test_instance_tracker_test.cc b/absl/container/internal/test_instance_tracker_test.cc
index 9efb677..0ae5763 100644
--- a/absl/container/internal/test_instance_tracker_test.cc
+++ b/absl/container/internal/test_instance_tracker_test.cc
@@ -157,4 +157,26 @@ TEST(TestInstanceTracker, ExistingInstances) {
   EXPECT_EQ(1, tracker.moves());
 }
 
+TEST(TestInstanceTracker, Comparisons) {
+  InstanceTracker tracker;
+  MovableOnlyInstance one(1), two(2);
+
+  EXPECT_EQ(0, tracker.comparisons());
+  EXPECT_FALSE(one == two);
+  EXPECT_EQ(1, tracker.comparisons());
+  EXPECT_TRUE(one != two);
+  EXPECT_EQ(2, tracker.comparisons());
+  EXPECT_TRUE(one < two);
+  EXPECT_EQ(3, tracker.comparisons());
+  EXPECT_FALSE(one > two);
+  EXPECT_EQ(4, tracker.comparisons());
+  EXPECT_TRUE(one <= two);
+  EXPECT_EQ(5, tracker.comparisons());
+  EXPECT_FALSE(one >= two);
+  EXPECT_EQ(6, tracker.comparisons());
+
+  tracker.ResetCopiesMovesSwaps();
+  EXPECT_EQ(0, tracker.comparisons());
+}
+
 }  // namespace