I thought the 'placement new' feature might replace my need for
`emplace`, but I don't see a way to mark a placement new as
`@trusted` without marking the call to the object's constructor
as `@trusted` also?
```d
void main() @safe{
X x;
//placement new is @system, so we have to wrap it in @trusted:
X* xPtr = (() @trusted => new (x) X(500))();
}
struct X{
void* a;
this(int a) @system{
//but we don't want to mark THIS as @trusted!
this.a = cast(void*)a;
}
}
```
If anyone has any ideas, please let me know.
