================
@@ -820,6 +820,26 @@ class vector {
__add_alignment_assumption(_Ptr __p) _NOEXCEPT {
return __p;
}
+
+ template <template <class, class, class> class _Layout>
+ _LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void
+ __swap_layouts(__split_buffer<_Tp, allocator_type&, _Layout>& __v) {
+ auto __begin = __begin_;
+ auto __sentinel = __end_;
+ auto __cap = __cap_;
+
+ auto __v_begin = __v.begin();
+ auto __v_sentinel = __v.__sentinel();
+ auto __v_cap = __v.__raw_capacity();
+
+ // TODO: replace with __set_valid_range and __set_capacity when vector
supports it.
+ __begin_ = __v_begin;
+ __end_ = __v_sentinel;
----------------
ldionne wrote:
This doesn't work in the case of a size-based `split_buffer`, right? Since the
sentinel of the split buffer is an integer and the vector's `__end_` is a
pointer.
https://github.com/llvm/llvm-project/pull/139632
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