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Editorial Team
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Asked: 2026-05-30T23:10:52+00:00

I have a class called AbstractRManagers which i would like to inheritent from a

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I have a class called AbstractRManagers which i would like to inheritent from a singleton template class Singleton but the abstractRmanager needing to be a template class I have come across some strange error codes that provide no use, Ive tried looking it up but to no luck. 

template <class Type>
class AbstractRManagers : public Singleton<AbstractRManagers>
{

error C3203: ‘AbstractRManagers’ : unspecialized class template can’t
be used as a template argument for template parameter ‘Type’, expected
a real type

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1 Answer

  1. Editorial Team

    AbstractRManagers names a template, which isn’t a type — it has to have a template parameter give to become a type. At least if I understand what you want, you probably need something like:

    template <class Type>
class AbstractRManagers : public Singleton<AbstractRManagers<Type> >

    …which starts to look suspiciously CRTP-like.

    Then the obligatory note: chances are pretty good that you don’t really need or want a singleton here (or nearly anywhere).

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