hi guys, i am writing a code using mblk/dblk. I have implemented my own allocb function. Hopefully it is right. When i try to assign the buff to the dblk_t structure element (the statement shown in bold) i get an error. If i comment out that line everything works fine. Am i doing something wrong. Can someone help me assign the buff to db_base of the struct dblk_t Code: struct dblk_t { struct dblk_t *db_freep; /* internal use */ unsigned char *db_base; /* first byte of buffer */ unsigned char *db_lim; /* last byte +1 of buffer */ unsigned char *db_vbase; /* first byte of system buffer */ int (*db_cb)(); /* callback routine */ unsigned long int db_size; unsigned char db_ref; /* count of to this block */ unsigned char db_type; /* message type */ unsigned char db_class; /* internal use */ unsigned char db_id; }; struct mblk_t { struct mblk_t *b_next; /* next message on queue */ struct mblk_t *b_prev; /* previous message on queue */ struct mblk_t *b_cont; /* next message block of message */ unsigned char *b_rptr; /* first unread data byte in message */ unsigned char *b_wptr; /* first unwritten data byte inbuffer*/ struct dblk_t *b_datap; /* data block */ }; struct mblk_t* allocb(int size) { struct mblk_t *mp; struct mblk_t mp1; mp=&mp1; unsigned char buff[size]; mp->b_rptr=buff; mp->b_wptr=buff; [B][SIZE="5"]mp->b_datap->db_base=buff;[/SIZE][/B] return mp; }
problem is that struct mblk_t* allocb(int size) { struct mblk_t *mp; struct mblk_t mp1; mp=&mp1; unsigned char buff[size]; size should be const.
