[Issue 4338] Structs with non-const destructors cannot be used as const parameters
via Digitalmars-d-bugs
digitalmars-d-bugs at puremagic.com
Tue Jul 25 03:09:40 PDT 2017
https://issues.dlang.org/show_bug.cgi?id=4338
ag0aep6g at gmail.com changed:
What |Removed |Added
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CC| |ag0aep6g at gmail.com
--- Comment #9 from ag0aep6g at gmail.com ---
(In reply to Andrei Alexandrescu from comment #6)
> Mutable destructors shouldn't apply to objects that were immutable,
> otherwise they can mutate immutable objects. Consider:
>
> struct A {
> int* p;
> ~this() { *p = 5; }
> }
>
> void main() {
> auto p = new immutable(int);
> { auto a = immutable(A)(p); }
> assert(*p == 0);
> }
Dedicated issue for that: issue 17682.
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