Structure arrays confusion

[firdooze]

hi!

I'm quite confused regarding the idea of structure arrays at the moment and hope someone can help me here.

typedef struct {

	int current_ptr, flag;
	unsigned int ifindex[MAX_NODE];
	rt_table_t rev_rt[MAX_NODE];
	u_int16_t weight_buf[MAX_NODE];
	u_int16_t rreq_hist[MAX_NODE];	
	u_int32_t seqno[MAX_NODE];

} buf_node[MAX_NODE];

say i have the above structure, how do i access the different variables inside?

My first issue here is if I want to access the variables, do I still need to declare a new pointer to the structer, e.g

buf_node *newptr;

or do I just straight away use the array, e.g

buf_node[0].current_ptr = 1;
buf_node[0].current_ptr = 2;

The first one doesn't make sense but I'd really like to clarify my doubts...

Thank you!

[firdooze]

I did a few more readings and changed my code a lil,

struct buf_data {

	int current_ptr, flag;
	unsigned int ifindex[MAX_NODE];
	rt_table_t rev_rt[MAX_NODE];
	u_int16_t wt[MAX_NODE];
	u_int16_t rreq_hist[MAX_NODE];	
	u_int32_t seqno[MAX_NODE];

} buf_node[MAX_NODE];

I'm still not sure regarding accessing the data using the array.

[gerard4143]

try;

buf_node[1].ifindex[1] = 123;
fprintf(stdout, "ans->%d\n", buf_node[1].ifindex[1]);

if MAX_NODE >= 1

[gerard4143]

try this tutorial...it has a very simple intro to structures and arrays of structures...

Brian W. Kernighan: Programming in C: A Tutorial