[Panzerschrek]

restrict in C++ can't work well. One can mark pointer parameters with this attribute, but in C++ it's not recommended to pass raw pointers, std::string_view or std::span should be used instead, but there is no way to specify restrict for the internal pointer of these containers.

[arcadialeak]

> std::string_view or std::span should be used instead

That is for when the owner is a std::string or an owning range respectively. But a raw pointer does still make sense as a non-owning view over a single element, doesn't it? I'm new to C++ so I might be wrong.

[cocoto]

Non-owning view over a single element should simply be a reference, you don’t care where this element is located.

[1718627440]

That won't work with NULL.