d的betterC很强大

//!dmd -betterC %
//编译.创建了类的静态`缓冲区`.
__gshared Foo[] foos = () {
  Foo[] ret;
  ret.length = 10;
  
  foreach(i, ref foo; ret) {
       foo = new Foo(i);  
  }//用CTFE的全局数组初化,来绕过`新`,编译时运行的.
  
  return ret;
}();//类似js的闭包,以Foo
//内联调用匿名函数

extern(C++) class Foo {//用C++版类
    //用`extern(C++)`绕过`类`限制
  size_t x;
  
  this(size_t x) {
       this.x = x;  
   }
}

extern(C) void main() {
  import core.stdc.stdio;
  
  foreach(foo; foos) {
       printf("%d\n", foo.x);
   }
}