Method get_field

src/bvar/default_variables.cpp:592–595

    }
    template <typename T, size_t offset>
    static T get_field(void*) {
        return *(T*)((char*)&CachedReader<DiskStat>::get_value(
                         DiskStatReader()) + offset);
    }
};

#define BVAR_DEFINE_DISK_STAT_FIELD(field)                              \