CODEWITHSUNDEEP
c++templatesc++11
Martin Perry
Martin Perry

Reputation: 9527

Class member method - return type template

Is it possible to do this in C++11 in some clean way

class Foo 
{
   public:
     Foo(Bar1 * b1, Bar2 * b2) : bar1(b1), bar2(b2) {}
     template <typename T> T * GetData<T>();
   private:
      Bar1 * bar1;
      Bar2 * bar2;
};

template <> Bar1 * Foo::GetData<Bar1>() { return this->bar1;}
template <> Bar2 * Foo::GetData<Bar2>() { return this->bar2;}

And in main code

Foo * foo = new Foo(new Bar1(), new Bar2());
Bar1 * b1 = foo->GetData<Bar1>();
Bar2 * b2 = foo->GetData<Bar2>();

Do it as this, it won't compile.

Upvotes: 0

Views: 48

Answers (1)

quantdev
quantdev

Reputation: 23813

Remove the <T> in the template member declaration :

 template <typename T>  T* GetData();

instead of :

 template <typename T>  T* GetData<T>();

Upvotes: 3

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