On Tuesday, 8 December 2015 at 05:13:51 UTC, Chris Wright wrote:
On Tue, 08 Dec 2015 14:12:02 +1100, Daniel Murphy wrote:
On 4/12/2015 8:38 AM, Chris Wright wrote:
An object reference is just a pointer, but we can't directly
cast it. So we make a pointer to it and cast that; the type
system allows it. Now we can access the data that the object
reference refers to directly.
Casting is fine too: cast(void*)classRef
Amazing. I assumed that this wouldn't be allowed because it's
not exactly nice to the type system, but apparently you can
cast anything but a user- defined value type to void*. Bool,
dchar, associative arrays, normal arrays, the good void* casts
them all.
A class can theoretically overload `opCast`. Therefore, to be
100% sure it works in all cases, you should use `*cast(void**)
&classRef`.
