Initialize Structure

1. Example 1

Case1

enum StatsampleType

{

ST_FIVE_SECONDS = 0,

ST_ONE_MINUTE,

ST_FIFTEEN_MINUTES,

ST_TWO_HOUR,

ST_ONE_DAY,

ST_LAST_LIMITED,

};

struct QueueInfo

{

unsigned ginval; /* interval time for gathering (seconds) */

int qcount; /* length of traffic queue */

};

static struct QueueInfo qinfo[] =

{

[ST_FIVE_SECONDS] = {SGI_FIVE_SECONDS, 0},

[ST_ONE_MINUTE] = {SGI_ONE_MINUTE, 0},

[ST_FIFTEEN_MINUTES] = {SGI_FIFTEEN_MINUTES, 0},

[ST_TWO_HOUR] = {SGI_TWO_HOUR, 0},

[ST_ONE_DAY] = {SGI_ONE_DAY, 0},

[ST_LAST_LIMITED] = {SGI_MAX_INTERVAL, 0},

};

Notice: You can initialize the unodered elements of the struture ( it means unlike ordered default).

Text Box

/*

* =====================================================================================

*

* Filename: test_struct.c

*

* Description:

*

* Version: 1.0

* Created: 01/24/2013 02:00:43 PM

* Revision: none

* Compiler: gcc

*

* Author: quyendv

* Company: dovanquyen.vn@gmail.com

*

* =====================================================================================

*/

#include <stdio.h>

struct queue

{

int a;

int b;

};

static struct queue qinfo[] =

{

[0] = {1, 2},

[2] = {-1, -2},

[1] = {3, 5},

[3] = {4,2},

};

int main()

{

printf("qinfo[1].a = %d\tqinfo[1].b = %d\n", qinfo[1].a, qinfo[1].b);

return 0;

}

Result: qinfo[3].a = 4 qinfo[3].b = 2