On Tuesday, 31 August 2021 at 05:42:22 UTC, ag0aep6g wrote:
On 31.08.21 02:50, Mike Parker wrote:
Member functions marked as immutable can be called on both
mutable and immutable instances.
That's not true.
Demonstrated:
```d
struct S {
int x;
int get() immutable { return x; }
}
unittest {
auto s1 = S(1);
const s2 = S(2);
immutable s3 = S(3);
assert(s1.get == 1); // Error: is not callable using a
mutable object
assert(s2.get == 2); // Error: is not callable using a
`const` object
assert(s3.get == 3);
}
```
s/immutable/const/ and all those uses are acceptable.
