[P2174] Compound Literals
https://wg21.link/P2174

EWG put a break on the proposal in Nov 2022.
https://github.com/cplusplus/papers/issues/883#issuecomment-1308098822

I think the author is so clever to come up with “casting” expression to turn a braced-init-list into an lvalue so you could do a code sugar like c23 compound literals…

char *ptr = strcat((char [100]){0}, "like this");

I think this approach is even independent to [P2752], braced-init-list now got back-storage promotion optimization possibility, with contrained access as before, of course.

[P2752] Static storage for braced initializers
https://wg21.link/P2752

[P2752] even now already got into c++26 last year (2023).
https://github.com/cplusplus/papers/issues/1442#issuecomment-1591576390

Considering this, if in c++26, a braced-init-list candidate is considered safely to be backed by static storage, wouldn’t it simply “make sense” that a “cast” of it, is just an lvalue copied from it in this particular case?

What are drawbacks of this “cast” approach, or even what are drawbacks of c23-like compound literals code sugar in c++ realm?