So the actual string cannot be used as long as the substr is used?   That is dangerous and unexpected.   -----Ursprüngliche Nachricht----- Von:Frederick Virchanza Gotham via Std-Proposals <std-proposals_at_[hidden]> Gesendet:So 01.02.2026 20:01 Betreff:Re: [std-proposals] [Idea] Null-terminated string view (c_str_view / c_wstr_view) – a simpler alternative/complement to zstring_view An:std-proposals_at_[hidden]; CC:Frederick Virchanza Gotham <cauldwell.thomas_at_[hidden]>;  If I was gonna write a class along these lines, here's what I'd go for:  - In the constructor, take a pointer to a mutable null-terminated string  - In the 'substr' method, save the value of the one-past-the-last character and replace it with a null - When the string is reset, place the one-past-the-last character back where it was  Of course this wouldn't be thread-safe, but it would be a nice efficient way to manipulate and re-use null-terminated strings.    -- Std-Proposals mailing list Std-Proposals_at_[hidden] https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals