Leaving a pointer to it on the stack
Andre Pany
andre at s-e-a-p.de
Thu Aug 13 20:04:59 UTC 2020
Hi,
in the specification
https://dlang.org/spec/interfaceToC.html#storage_allocation there
is this paragraph:
"Leaving a pointer to it on the stack (as a parameter or
automatic variable), as the garbage collector will scan the
stack."
I have some trouble to understand what does this mean. Given this
example:
```
import std;
void main()
{
int* i;
sample(&i);
writeln(*i);
}
extern(C) export void sample(int** i)
{
*i = new int();
**i = 42;
}
```
Int variable is created on the heap. How do I leave a pointer on
the stack?
(In the real coding, sample function will be called from Delphi)
Kind regards
André
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