Does Visual C++ support member function template?

[Jee]

Hi,
Does Visual C++ support member function template? I have the
following code which can not get through VC6
compiler.

In header,
class myclass{
public:
template<class T>
static std::vector<T> getIntersection (std::vector<T> & ,
std::vector<T>& );
};

In Cpp file,
template<class T>
vector<T> myclass::getInt ersection(vecto r<T>& v1, vector<T>&
v2){
vector<T> v;
vector<T>::iter ator itr1;

if (v1.size() == 0){
return v;
}

......
return v;
}

This code passes SUN Forte compiler, but VC6 complains on this line,

if (v1.size() == 0){

as " error C2228: left of '.size' must have class/struct/union
type".

Do you know what's wrong here?

Thanks a lot.

[Moonlit]

Re: Does Visual C++ support member function template?

Hi,


"Jee" <jee@hotmail.co m> wrote in message
news:3F871B4B.A 55BA19C@hotmail .com...[color=blue]
> Hi,
> Does Visual C++ support member function template? I have the[/color]
Yes, VC6 and later in any case[color=blue]
> following code which can not get through VC6
> compiler.
>
> In header,
> class myclass{
> public:
> template<class T>
> static std::vector<T> getIntersection (std::vector<T> & ,
> std::vector<T>& );
> };
>
> In Cpp file,
> template<class T>
> vector<T> myclass::getInt ersection(vecto r<T>& v1, vector<T>&
> v2){
> vector<T> v;
> vector<T>::iter ator itr1;
>
> if (v1.size() == 0){
> return v;
> }
>
> ......
> return v;
> }
>[/color]
Try moving the template function body to the header might help. I am not
sure how the compiler is going to generate code if a part is in the cpp
file. How does it know what it should generate if you fill in a certain
type?


Regards, Ron AF Greve.

[color=blue]
> This code passes SUN Forte compiler, but VC6 complains on this line,
>
> if (v1.size() == 0){
>
> as " error C2228: left of '.size' must have class/struct/union
> type".
>
> Do you know what's wrong here?
>
> Thanks a lot.
>
>[/color]

[Moonlit]

Re: Does Visual C++ support member function template?

Hi,

Don't think my reply was very clear. What I meant was that if you include
the header from another cpp file (not the one with the template body) how
would it know what the body should look like.

Regards

[David B. Held]

Re: Does Visual C++ support member function template?

"Jee" <jee@hotmail.co m> wrote in message
news:3F871B4B.A 55BA19C@hotmail .com...[color=blue]
> [...]
> Does Visual C++ support member function template? I
> have the following code which can not get through VC6
> compiler.
> [...][/color]

It has limited and flaky member template function support.
Try asking in a Microsoft newsgroup.

Dave



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