On Wednesday, 1 May 2019 at 14:59:48 UTC, Robert M. Münch wrote:
On 2019-05-01 14:23:37 +0000, Alex said:
However, to rebuild the same structure, auto ref parameters
may be appropriate.
https://dlang.org/spec/template.html#auto-ref-parameters
That would need me to change myfunc which is not possible
because the D binding is all generated from C code.
Ok, I see.
or you new A(...) in place
Doesn't work because this seems to kick in some D releated
run-time stuff which lead to unresolved externals during
linking:
error LNK2001: Nicht aufgelöstes externes Symbol "...__initZ".
error LNK2001: Nicht aufgelöstes externes Symbol
"...__xtoHashFNbNeKxSQBtQBoQBfZm".
error LNK2001: Nicht aufgelöstes externes Symbol
"...__xopEqualsFKxSQBsQBnQBeKxQmZb".
Not sure, why this happens.
Found this bug:
https://issues.dlang.org/show_bug.cgi?id=12374
It is closed now, because of inactivity, if you have a current
case - a reopen is welcome.
However... Not sure, maybe someone else has more knowledge about
this.
or you use the byRef-pattern as shown in d-idioms
https://p0nce.github.io/d-idioms/#Rvalue-references:-Understanding-auto-ref-and-then-not-using-it
This again would need my to change the C bindings, which are
generated.
So, you generate D structs from C, right? If so, and if you need
the byRef at any cost - you could tweak the generator, so byRef
is generated for all structs.
