Casts

[Steven Schveighoffer]

On 2/6/18 4:16 PM, timotheecour wrote:
> On Wednesday, 22 October 2008 at 18:43:15 UTC, Denis Koroskin wrote:
>> On Wed, 22 Oct 2008 22:39:10 +0400, bearophile 
>> <bearophileHUGS at lycos.com> wrote:
>>
>>> [...]
>>
>> You can use the following short-cut to avoid double casting:
>>
>> if (auto foo = cast(Foo)obj) {
>>     ...
>> } else if (auto bar = cast(Bar)bar) {
>>     ...
>> } else {
>>     ...
>> }
> 
> doesn't work with extern(C++) classes see 
> https://forum.dlang.org/post/nolylatfyjktnvweyxlu@forum.dlang.org

Thimotheecour, I'm not sure how you find these threads. This one is 
almost 10 years old! Back then, C++ class integration wasn't even a 
twinkling in Walter's eye ;)

-Steve