C Having Trouble with Pointer Incrementing (I think)

Question

Quite a simple error I guess but I get this error when trying to compile my C code:

error: expected identifier before '(' token

From this code where I am trying to set up structs for a hash table with linked lists for hash collisions:

typedef struct bN {
    MEntry nestedEntry;
    struct bN *next;
} bucketNode;

typedef struct bL {
    bucketNode *first;
    int bucketSize;
} bucket;

struct mlist {
    bucket *currentTable;
};

And this code where I actually initialise the linked list:

MList *ml_create(void){

    MList *temp;

    if (ml_verbose){
        fprintf(stderr, "mlist: creating mailing list\n");
    }
    if ((temp = (MList *)malloc(sizeof(MList))) != NULL){
        temp->currentTable = (bucket *)malloc(tableSize * sizeof(bucket));
        int i;
        for(i = 0; i < tableSize; i++){
            temp->(currentTable+i)->first = NULL; /**ERROR HERE*/
            temp->(currentTable+i)->bucketSize = 0; /**ERROR HERE*/
        }
    }
    return temp;

}

Sorry, don't think my comments were very visible. In the second block of code about 3/4 of the way down in the for loop :) — Geesh_SO, Oct 23 '12 at 13:34
Btw: In C just do not cast the result of `malloc()`: http://stackoverflow.com/a/605858/694576 — alk, Oct 23 '12 at 13:50

score 6 · Accepted Answer · answered Oct 23 '12 at 13:35

6

Your syntax is off. You mean:

temp->currentTable[i].first = NULL;
temp->currentTable[i].bucketSize = 0;

answered Oct 23 '12 at 13:35

unwind

391,730
64
469
606

score 0 · Answer 2 · answered Oct 23 '12 at 13:35

0

Change

temp->(currentTable+i)->first = NULL;

to be

(temp->currentTable+i)->first = NULL;

answered Oct 23 '12 at 13:35

alk

69,737
10
105
255

C Having Trouble with Pointer Incrementing (I think)

2 Answers2