class templates & constructor defn outside the class

[gopal]

I have the following class template declaration

//class template declaration
template <class T> class A {
public:
T t1;
A(T);
};

I would like to define the class A constrcutor outside. Any help
please?

Regards
JK

 

[Ian Collins]

I have the following class template declaration

//class template declaration
template <class T> class A {
public:
T t1;
A(T);
};

I would like to define the class A constrcutor outside. Any help
please?

Well that all depends on how your compiler looks for class template
member definitions. If it supports 'export' or uses other means to
locate them, you can put the definition in an appropriate source file.
Otherwise you have to include the definition in the header.

template <class T>
A<T>::A( T )
{
...
}

 

[gopal]

Hi tried the above code and i got the following error

1. __ctor' : is not a member of 'A<T>
2. A<T>' : template-class-id redefined as a global function
3. initializing' : cannot convert from 'const int' to 'class
A<int>

 

[Roland Pibinger]

Hi tried the above code and i got the following error

1. __ctor' : is not a member of 'A<T>
2. A<T>' : template-class-id redefined as a global function
3. initializing' : cannot convert from 'const int' to 'class
A<int>

The following should work:

template <class T> class A {
public:
T t1;
A(T);
};

template <class T>
A<T>::A ( T t): t1(t)
{
}

int main() {
A<int> test (3);
}

Best wishes,
Roland Pibinger

 

[gopal]

Hi, I am sorry, i did the following mistake -

I dint declare the constrcutor with argument inside the class body.
That is the reason for the error.

Thanks a lot.

JK.