Thread: Keeping track of static external structure

Don't bother with static. Use a global list pointer.

Quzah.

Sure. Make a global variable.

SCHED_UNIT_T *myData;

If you want to "protect" this, make your functions that modify this data static so they can only be called from within the same file. Make an accessor functions that aren't static that can be used to manipulate the data safely.

Actually though, from the description of it, if all you need is an array of 20 max, just use an array instead of a pointer.

SCHED_UNIT_T myData[20];

Then make functions that "add" or "remove" items from the list. You could treat it like a stack and just use a variable some place to keep track of the total number of items in the array.

int dataCount;

Then just check to see if your array is full before you add, or empty before you remove.

When I initally said 'list poitner', I was thinking you were using a linked list, not an array.

Quzah.

Originally posted by pwilfred
Do you have to declare the array as static?

1) Yes, if you're going to have it localized to a function.
2) No, not if it's global, or if it's in the main fuction and you're passing it to other functions.

Quzah.