Re: Error while declaring CArray within struct

From:

"Giovanni Dicanio" <giovanniDOTdicanio@REMOVEMEgmail.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 28 Nov 2009 13:05:27 +0100

Message-ID:

<uU$FZMCcKHA.1652@TK2MSFTNGP05.phx.gbl>

"Ru" <ruspatil@gmail.com> ha scritto nel messaggio
news:d1aad9d7-1b85-4e1f-ae4d-ddc77b2e8c38@z10g2000prh.googlegroups.com...

I am using VS2005. I have declared a simple global structure,
struct CDrawElement
{
bool m_bChildren;
CArray <int, int> ptArray;
};

I am getting these compllation errors,
1>d:\program files\microsoft visual studio 8\vc\atlmfc\include
\afxtempl.h(272) : error C2248: 'CObject::CObject' : cannot access
private member declared in class 'CObject'
1> d:\program files\microsoft visual studio 8\vc\atlmfc\include
\afx.h(558) : see declaration of 'CObject::CObject'
1> d:\program files\microsoft visual studio 8\vc\atlmfc\include
\afx.h(529) : see declaration of 'CObject'
1> This diagnostic occurred in the compiler generated function
'CArray<TYPE,ARG_TYPE>::CArray(const CArray<TYPE,ARG_TYPE> &)'
1> with
1> [
1> TYPE=int,
1> ARG_TYPE=int
1> ]

The problem here is that MFC's CArray container class is not copiable, i.e.
they defined *private* operator= and copy constructor for CArray to prevent
copies.

If you want a copiable array container you may want to use std::vector, e.g.

struct CDrawElement
{
bool m_bChildren;
std::vector<int> ptArray;
};

Giovanni