I have the same error in copy contructor :
Foo::Foo(Foo const & copy)
{
VecDuplicate(copy.m_vec,&m_vec);
VecCopy(copy.m_vec,m_vec);
}
What am I doing wrong here?
Cédric
----- Mail original -----
> De: "Cedric Doucet" <[email protected]>
> À: [email protected]
> Envoyé: Jeudi 19 Juin 2014 14:14:39
> Objet: Assignement operator overloading for vectors
>
> Hello,
>
> I need to overload the assignement operator for a C++ class which has a Petsc
> vector as a data member:
>
> class Foo
> {
> public:
> Foo & operator=(Foo const & copy);
> private:
> Vec m_vec;
> };
>
> The algorithm for overloading the assignement operator should look like this
> :
>
> Foo & Foo::operator=(Foo const & copy)
> {
> if ( this != copy )
> {
> // destroy this->m_vec
> // allocate this->m_vec with the same size as copy.m_vec's size
> // copy the content of copy.m_vec into this->m_vec
> }
> return *this;
> }
>
> I thought that VecCopy(copy.m_vec,m_vec) does everything I need but I have an
> error during the execution.
> So I tried to call first VecDuplicate(copy.m_vec,&m_vec) and then
> VecCopy(copy.m_vec,m_vec) but I still have an error.
> How shoud assignement operator overloading be implemented?
> Do I have to call VecDestroy before calling VecDuplicate?
> Must input vectors have the same size in VecCopy?
>
> Thank you very much for your help!
>
> Best regards,
>
> Cédric Doucet
