Why does Eclipse CDT say: 'syntax error', but compilation no problem

Question

I am working in existing C code which has a couple of lines with statements similar to this one:

struct collect_conn *tc = (struct collect_conn *) 
     ((char *         


        

Answer 1

It seems the CDT parser doesn't like the portion offsetof(struct ...). If you declare collect_conn using a typedef the error goes away. At least for me, the following code works:

typedef struct  {
   struct runicast_conn runicast_conn;
   struct announcement announcement;
   const struct collect_callbacks *cb;
   struct ctimer t;
   uint16_t rtmetric;
   uint8_t forwarding;
   uint8_t seqno;
} collect_conn;
...
struct collect_conn *tc = (struct collect_conn *)
     ((char *)c - offsetof(collect_conn, runicast_conn));

If you can't change the original declaration do something like this:

typedef struct collect_conn collect_conn_t;