[libcxx-commits] [libcxx] [libc++] added benchmarks for `string::append()` (PR #213990)

[Nikolas Klauser via libcxx-commits]

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@@ -43,6 +43,25 @@ void bench(std::string name, Func func, Mod modifier = {}) {
 #endif
 }
 
+template <typename Iterator>
+struct unoptimizable_forward_iterator : Iterator {
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philnik777 wrote:

He derived from a specific iterator though. A general iterator wrapper as you have here is an entirely different thing. We should implement that properly, not only when we need it at some later point.

https://github.com/llvm/llvm-project/pull/213990