GC is not used in D

original text

It's not necessary GC Use class . Just use malloc/free or std.experimental.allocator wait , Manual Distribute and release they .automem Of Smart pointer Library This is very useful :
automem
If you want to completely avoid D Runtime , You can't use " Ordinary " Of D class , however extern(C++) Classes can still work .
If you absolutely must use structure , You can use "alias this" To achieve inheritance :
Alias book