Custom delete not getting called

[d coder]

Hello People

I was just trying out custom memory allocation/deallocation that can be
found on the link
http://www.d-programming-language.org/memory.html#newdelete

The problem is that the delete function is never getting called. I have put
an example test case at the end of the email.

Any ideas?

Regards
- Puneet



import core.memory : GC;
import std.stdio;
import std.exception; // enforce

class Foo {
  string value = ".";

  new(size_t sz) {
    write("+");
    void* p = enforce(GC.malloc(sz),
      "Out of memory while allocating Foo");
    GC.addRange(p, sz);
    return p;
  }

  delete(void* p) {
    write("-");
    if (p) {
      GC.removeRange(p);
      GC.free(p);
    }
  }
}

void main() {
  for (size_t i = 0; i < 32; ++i) {
    Foo foo = new Foo();
    write(foo.value);
  }
}
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