[libcxx-commits] [libcxx] [libc++] Add missing assertion in std::span constructor (PR #118396)

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mxms0 wrote:

Just a drive by comment, but can this assert be some form of _LIBCPP_ASSERT_NON_NULL? 

I'm not sure if passing a null-iterator here with a length has a lot of security impact (besides the general idea that it's UB and the compiler can do anything). It's possible I'm misunderstanding :)

https://github.com/llvm/llvm-project/pull/118396