[libcxx] [llvm] [clang] [clang-tools-extra] [libc++][span] P2821R5: span.at() (PR #74994)

[Mark de Wever via cfe-commits]

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@@ -552,6 +578,10 @@ public:
 private:
     pointer   __data_;
     size_type __size_;
+
+#  if _LIBCPP_STD_VER >= 26
+    _LIBCPP_NORETURN _LIBCPP_HIDE_FROM_ABI void __throw_out_of_range() const { std::__throw_out_of_range("span"); }
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mordante wrote:

Either remove the helper function and call `std::__throw_out_of_range("span");` directly or move it in the `std` namespace. We now add functions that are called once and use indirection for it.

https://github.com/llvm/llvm-project/pull/74994