CODEWITHSUNDEEP
c++templatesfunction-templatesclass-template
Michael
Michael

Reputation: 2446

Template function inside template class

I have this code:

template <class T>
class MyClass {
public:
    template <class U>
    void foo() {
        U a;
        a.invoke();
    }
};

I want it in this form:

template <class T>
class MyClass {
public:
    template <class U>
    void foo();
};

template <class T> /* ????? */
void MyClass<T>::foo() {
    U a;
    a.invoke();
}

How can I do this? What is the correct syntax?

Upvotes: 162

Views: 74944

Answers (1)

Kerrek SB
Kerrek SB

Reputation: 476950

Write this:

template <class T>
template <class U>
void MyClass<T>::foo() { /* ... */ }

Upvotes: 242

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