[libcxx-commits] [libcxx] [libc++] Optimize vector growth for nothrow move constructible types (PR #214690)

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Fri Aug 7 03:45:53 PDT 2026


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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- libcxx/include/__memory/uninitialized_algorithms.h libcxx/test/benchmarks/containers/sequence/vector.bench.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/include/__memory/uninitialized_algorithms.h b/libcxx/include/__memory/uninitialized_algorithms.h
index 9c48c8eaf..425ef5425 100644
--- a/libcxx/include/__memory/uninitialized_algorithms.h
+++ b/libcxx/include/__memory/uninitialized_algorithms.h
@@ -405,7 +405,7 @@ _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void __uninitialized_allocat
   static_assert(
       __is_cpp17_move_insertable_v<_Alloc>, "The specified type does not meet the requirements of Cpp17MoveInsertable");
 
-  using __value_type   = typename iterator_traits<_ContiguousIterator>::value_type;
+  using __value_type = typename iterator_traits<_ContiguousIterator>::value_type;
 
   if _LIBCPP_CONSTEXPR (__allocator_has_trivial_move_construct_v<_Alloc, __value_type> &&
                         __allocator_has_trivial_destroy_v<_Alloc, __value_type> &&

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https://github.com/llvm/llvm-project/pull/214690


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