[libcxx-commits] [libcxx] [libcxx] Optimize std::generate for segmented iterators (PR #163006)

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c8ef wrote:

> > The final issue is that auto&& is unavailable in C++ standards prior to C++14. : (
> 
> `[]<class T>(T&& v) { ... }` should work.

```
<source>:2:17: warning: explicit template parameter list for lambdas is a C++20 extension [-Wc++20-extensions]
    2 |     auto fn = []<class T>(T&& v) { return v + 1; };
```

Get a clang ICE on c++11 mode: https://godbolt.org/z/P4j6r5cra 😆 

https://github.com/llvm/llvm-project/pull/163006