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diff --git a/include/__split_buffer b/include/__split_buffer
index da73f4c..7131932 100644
--- a/include/__split_buffer
+++ b/include/__split_buffer
@@ -156,7 +156,7 @@ public:
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void pop_front() { __destruct_at_begin(__begin_ + 1); }
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void pop_back() { __destruct_at_end(__end_ - 1); }
-
+ void __uninitialized_at_end(size_type __n);
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __construct_at_end(size_type __n);
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __construct_at_end(size_type __n, const_reference __x);
@@ -246,6 +246,13 @@ __split_buffer<_Tp, _Allocator>::__invariants() const
return true;
}
+template <class _Tp, class _Allocator>
+void
+__split_buffer<_Tp, _Allocator>::__uninitialized_at_end(size_type __n)
+{
+ this->__end_ += __n;
+}
+
// Default constructs __n objects starting at __end_
// throws if construction throws
// Precondition: __n > 0
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