[committed 2/2] libstdc++: Fix invalid order in PSTL inplace_merge test [PR90276]

[Jonathan Wakely]

Tested x86_64-linux. Pushed to trunk.

-- >8 --

This looks like a typo in the upstream test that causes a failure in
debug mode. It has been reported upstream.

libstdc++-v3/ChangeLog:

	PR libstdc++/90276
	* testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: Fix
	comparison function to use less-than instead of equality.
---
 .../testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc b/libstdc++-v3/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc
index 576f22423b8..a9205553574 100644
--- a/libstdc++-v3/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc
@@ -160,7 +160,7 @@ main()
     test_by_type<MemoryChecker>(
         [](std::size_t idx){ return MemoryChecker{std::int32_t(idx * 2)}; },
         [](std::size_t idx){ return MemoryChecker{std::int32_t(idx * 2 + 1)}; },
-        [](const MemoryChecker& val1, const MemoryChecker& val2){ return val1.value() == val2.value(); });
+        [](const MemoryChecker& val1, const MemoryChecker& val2){ return val1.value() < val2.value(); });
     EXPECT_FALSE(MemoryChecker::alive_objects() < 0, "wrong effect from inplace_merge: number of ctors calls < num of dtors calls");
     EXPECT_FALSE(MemoryChecker::alive_objects() > 0, "wrong effect from inplace_merge: number of ctors calls > num of dtors calls");
 
-- 
2.43.0