[ITK-users] Smartpointer as a default parameter for a function

[vincent ngai]

Technically it should be A(int a, ImageType::Pointer ptr =
ImageType::Pointer() );

But I"m not sure if parameter defaults are supported on non-POD parameter
types. Why not just overload the ctor and create another
class A
{
 A(int a, ImageType::Pointer ptr);
 A( int a );
};


On Tue, Jul 22, 2014 at 3:37 PM, <ahmed at mufradat.com> wrote:

> Hello All,
>
> Suppose I have class like
>
> class A{
>     public:
>     A(int a, ImageType::Pointer ptr){
>         // whatever!
>     }
> };
>
> My question is, what's the default value for that ptr? I'd like to be able
> to create an instance of that class using
>
> A myA(5);
>
> so for the definition of the constructor of A:
>
> A(int a, ImageType::Pointer ptr = WHAT?)
>
> Best regards,
> Ahmed
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-- 
Regards,
Vincent
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