Re: template with STL container

From:

softwareEngineer <ovNOSPAM@NOSPAMlibero.it>

Newsgroups:

comp.lang.c++

Date:

Tue, 04 Oct 2011 16:16:00 +0200

Message-ID:

<4E8B1520.80102@NOSPAMlibero.it>

Il 04/10/2011 16:01, Victor Bazarov ha scritto:

On 10/4/2011 10:00 AM, softwareEngineer wrote:

I'd like to manage a template in a STL vector container i.e. :

template <typename T>
class MY_Value
{
// ...
T GetValue ();

private :
T _val;
};

now in my main would :
std::vector <MY_Value*> v;

In order for this to compile, 'v' has to have a concrete type. Otherwise, how
should the compiler know how much memory to allocate for it and how to
initialize it?

MyValue<int> iV1 = 1;
MyValue<int> iV2 = 2;
v[0] = &iV1;
v[1] = &iV2;

but i have had a problem because (obviously) MyValue it's a template .... ;

There is a workaround to manage a template in a standard container
(vector for example) ?

Well, is there a reason that

std::vector<MY_Value<int>*> v;

does not work for you?

V

Yes, but I need a vector of generic value (float, int, ecc.)

MyValue<int> iV1 = 1;
MyValue<float> iV2 = 2.1;
v[0] = &iV1;
v[1] = &iV2;

_ _
Ono

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