CODEWITHSUNDEEP
c++templatessfinae
metablaster
metablaster

Reputation: 2184

Define function outside template class that uses SFINAE?

In bellow sample I want to define destructor in this case outside the class, none of the trillion syntaxes I tried so far works:

    template<typename OjectType,
        typename = std::enable_if_t<std::is_base_of_v<SomeClass, OjectType>>>
    class SampleClass
    {
    public:
        ~SampleClass();
    };

    // How to define this outside class?
    template<typename ObjectType>
    SampleClass<ObjectType>::~SampleClass()
    {
    }

Upvotes: 1

Views: 154

Answers (1)

HolyBlackCat
HolyBlackCat

Reputation: 96306

You were close, you forgot to specify the second template parameter (without the default value):

template <typename ObjectType, typename Dummy>
SampleClass<ObjectType, Dummy>::~SampleClass()
{
    // ...
}

Upvotes: 4

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