How to handle zero-length flexible array?

[huming2207]

Hi all,

May I ask how to handle a zero-length flexible array? For example here's the code in C++:

    struct __attribute__((packed)) cfg_pkt {
        nvs_type_t type : 8;
        uint16_t val_len;
        char ns[16];
        char key[16];
        uint8_t value[];
    };

The value[] is a flexible array member. How should I handle gracefully with this library?

Regards,
Jackson