initializing the size of a csArray

[scandido]

Sorry if this is a dumb question but I can't seem to discern from the API exactly how to set the initial capacity for csArray. For example, if I'm trying create a n x n array of integers (and I don't want to 'Push' every value into the array), is the only appropriate method:

Code:

csArray< csArray<int> > arr;
arr.SetSize (n);
for (unsigned int i = 0; i < n; i++) arr[i].SetSize (n);

I know there are some capacity attributes but I can't seem to figure out how to use them. Any help is greatly appreciated!

- Sal

[res]

There is no constructor that takes a size to initialize with (specifying a capacity allocates that amount of memory, but doesn't set the size itself).

So you could either do it your way, or perhaps utilize the fact that SetSize() can fill the newly added entries with some "value":

Code:

csArray<int> temp;
temp.SetSize (n);
csArray< csArray<int> > arr;
arr.SetSize (n, temp);

[scandido]

Am I correct in thinking that setting the capacity will allocate memory but will not allow access to the array until I set the size?

Is there a plan to add a constructor that allows specifying an initial size for the array or is there a design reason to exclude it?

Thanks,
Sal

[res]

Am I correct in thinking that setting the capacity will allocate memory but will not allow access to the array until I set the size?

Yes.

Is there a plan to add a constructor that allows specifying an initial size for the array or is there a design reason to exclude it?

No.

I can't think of a design reason apart from "was there first". Obviously the ctor can't be changed from taking a capacity to taking a size since that would break about all existing code using csArray<>. However it would be possible to do something like a capacity + size constructor.

[res]

No.

FWIW, "No" to "Is there a plan to add a constructor ..." - absence of such a plan on our side doesn't mean we would reject patches to do that ...