[libcxx-commits] [libcxx] [libcxx] adds size-based `__split_buffer` representation to unstable ABI (PR #139632)

Nikolas Klauser via libcxx-commits libcxx-commits at lists.llvm.org
Sun May 25 09:14:20 PDT 2025


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@@ -78,23 +80,260 @@ public:
                       __split_buffer,
                       void>;
 
-  pointer __first_;
-  pointer __begin_;
-  pointer __end_;
-  _LIBCPP_COMPRESSED_PAIR(pointer, __cap_, allocator_type, __alloc_);
+  struct __data {
+    pointer __first_ = nullptr;
+    pointer __begin_ = nullptr;
----------------
philnik777 wrote:

Should `__begin_` be represented as an offset as well?

https://github.com/llvm/llvm-project/pull/139632


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