Re: Can singleton be owned by any object other than itself

Diego Martins <>
Mon, 23 Jun 2008 09:39:33 -0700 (PDT)
On Jun 21, 12:30 am, "Daniel T." <> wrote:

tech <> wrote:

Is it ok to allow another object to own a singleton object, or is
this definitely a NO NO. I have a utility class that i want to
provide access to a whole group of subobjects so i can make this
utility a singleton. But i was wondering if i can have it owned by
a top level object which encompasses all the other subobjects(which
would use the singleton utility) so there shouldn't be any refs to
the handle floating around when the top level is destroyed and it
would of course destroy the singleton.

class Foo {
   static Foo* instance;
   Foo() {
      assert( instance == 0 );
      instance = this;
   ~Foo() {
      instance = 0;


The above is a singleton that my boss uses quite a bit. I'm not a big
fan of singletons (or globals in general) myself.

but where is the access point?

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