On 11/12/2011 03:39 PM, deadalnix wrote:
Hi all,
We recently had a discution on #D about copying a struct on the heap and
getting a pointer to it.
We come up with the following solution (Thanks to CyberShadow !) :
struct S;
S s; // Allocated locally.
[s].ptr; // Get a pointer to a copy in the heap of the struct
What is going on ? An array of one object is allocated on the heap and
the struct copied in it. Then we get a pointer to the first (and only
one) element of the array with ptr.
So we have a pointer to a copy of s on the heap.
I have several question on that :
- Does a idiomatic way to do that exists ?
I don't think that this is such a common need.
- Is this intented to do so ?
Yes.
Will this construct risk to be broken in a
future version of D ?
No.
- Is this construct the idiomatic way to do so ?
It is certainly the most elegant way to do so.
