Declare typedef struct Variable - ios

Question

I have this typedef in my .h file
typedef struct
{
NSInteger openTime;
NSInteger closeTime;
} ShopHours;
Now I want to declare it in my .m file and then like you would a NSString that you want to use throughout the .m.
SO basically I want to initialize it, as an array of the typedef and then so I can assign it a vaule in my viewDidLoad method, as I see fit.
So basically I want to declare it like
ShopHours weekSchedule[] = {};
And then in viewDidLoad
weekSchedule[] = {//my data}
But when I try to declare and use it like this I get compile error
Field has incomplete type 'SHopHours[]'
Thanks for the help in advance

Answer 1

The compiler needs to know how big the weekSchedule variable is in order to put some memory aside for it. You could declare it as shopHours weekSchedule[7] for example.

Answer 2

I tried, the problem was you need to decleare the size of the array first :
#interface LoginScreen (){
ShopHours aa[5];
}
- (void)viewDidLoad
{
[super viewDidLoad];
for (int i = 0; i < 5; i++) {
aa[i].closeTime = 5+i;
aa[i].openTime = 10 + i;
}
}
In another method I logged it:
for (int i = 0; i < 5; i++) {
NSLog(#"Open Time %ld\n",(long)aa[i].openTime);
NSLog(#"Close Time %ld\n",(long)aa[i].closeTime);
}
Works just fine.
If you want dynamic memory allocation,you can do it
#interface LoginScreen (){
ShopHours *aa;
}
- (void)viewDidLoad
{
[super viewDidLoad];
aa = malloc(sizeof(ShopHours) * 5);
for (int i = 0; i < 5; i++) {
aa[i].closeTime = 5+i;
aa[i].openTime = 10 + i;
}
}
Hope this helops.. :)