How to define Struct / Array type with runtime invariants like SVE or RVV

[Jojo R via Gcc]

Hi,

        I want to use struct or array type as container in my project,

        but GCC does not support this usage by now because that

        the size of these types are decided at compile-time :(

        so is there any good solution to fix this ?

        or some new feature patches to add supporting for these types with
        computed size at runtime ?

— Jojo R