[libcxx-commits] [libcxx] [z/OS][libc++] Guard to be used only when `align_val_t` is available (PR #114396)

[Louis Dionne via libcxx-commits]

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@@ -75,7 +75,7 @@ class __small_buffer {
   template <class _Stored>
   _LIBCPP_HIDE_FROM_ABI void __dealloc() noexcept {
     if constexpr (!__fits_in_buffer<_Stored>)
-      ::operator delete[](*reinterpret_cast<void**>(__buffer_), sizeof(_Stored), align_val_t{alignof(_Stored)});
+      std::__libcpp_deallocate((void*)__buffer_, _BufferSize * sizeof(byte), alignof(_Stored));
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ldionne wrote:

This is incorrect, since you're deallocating the buffer itself (which is a member variable), not the pointer contained in the buffer. The previous `reinterpret_cast` must be kept.

https://github.com/llvm/llvm-project/pull/114396