using Unsized Arrays in Structures from d?
ag0aep6g
anonymous at example.com
Fri May 4 15:37:28 UTC 2018
On Friday, 4 May 2018 at 13:02:08 UTC, NewUser wrote:
> How can I use the following c structure from d.
>
> struct Item
> {
> int id;
> };
>
> struct Group
> {
> int i;
> int item_count;
> struct Item items[];
> };
>
> tried defining items[] as both "Item[] items" and "Item* items"
> in d, it compiles okay but gives an error when trying to access
> it.
>
> Here is the error.
> object.Error@(0): Access Violation
In the C code, the elements of `items` are directly part of the
struct. There is no indirection. D doesn't have dedicated syntax
for this, but you can hint at it with a zero-sized array:
struct Group
{
int i;
int item_count;
Item[0] items;
}
Then access an item with `group.items.ptr[index]`.
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