checking whether two vector references / pointers are the same

Hallo,

I have two image processing class methods which - to the outside - basically
do the same operation on a vector of images. The difference is that one
function produces new images, allocating the necessary memory; the other
function directly modifies the source images' data. Internally two different
functions have to be called.
I would like to get rid of the necessary overload (then I can implement the
command pattern).
For this I would have to be able to check whether the passed output vector
is the same as the input one (see code snippet below) without comparing the
vector contents via their "==" operator. Is this somehow possible?

Thanks in advance,

Fabian

bool StackOpLRDeconvXY::Execute(const vector<Spimage*>& inPlanes, const
unsigned int planeNum, vector<Spimage*>* outPlanes) const
{
    try
    {
        if (inPlanes != *outPlanes) // This will compare the vector elements, right?
        {
            // take inplanes as source and outPlanes as target
        }
        else
        {
            // take inPlanes as source and target
        }
    }
    catch(...)
    {
        PrintError("StackOpLRDeconvXY::Execute()", "error calculating plane");
        return false;
    }
    return true;
}