CArray的新运算符导致错误

Question

I have the following MFC (C++) code that allocates a pointer to an array without the need to raise exceptions in case of low memory condition. I compile it with Visual Studio 2008.

struct MY_ITEM_INFO
{
    CString str;
    int n;

    MY_ITEM_INFO()
    {
        n = 0;
    }
};

CArray<MY_ITEM_INFO>* pArrResItems = new (std::nothrow) CArray<MY_ITEM_INFO>();
if(pArrResItems != NULL)
{
    //Got it!

    //Remove it
    delete pArrResItems;
}

Which gives me the following error message on a new operator line when I try to compile it:

error C2665: 'CObject::operator new' : none of the 3 overloads could convert all the argument types
could be 'void *CObject::operator new(size_t,void *)'

Any idea how to make it to compile?

Answer 1

OK. I got it, the new line should've been this (or take new operator from the global namespace):

CArray<MY_ITEM_INFO>* pArrResItems = ::new (std::nothrow) CArray<MY_ITEM_INFO>();

Evidently the new operator for CObject does not support nothrow_t .