Thread: Pass pointer to function

Hi,

I am trying to pass a pointer to a function that accepts a reference to an object. Can someone tell me how to do this?
My code looks something like the following:

Code:

UserMatrix mat;
UserMatrix *ptrMat;
ptrMat = &mat;


......

void setUpMat(UserMatrix &matrix)
{
    matrix[0] = 1;
   ....
}

So how can I call the function setUpMatrix with ptrMat??

Thanks for your help
Mark

Code:

setUpMat ( *ptrMat );

Why would you need a pointer, when you're already passing by reference.

Given your current function, you would do
setUpMat( mat );

There's no need for the pointer.

I am trying to pass a pointer to a function that accepts a reference to an object.

You can't. C++ requires that the arguments you send to a function be the same type as the parameter type. A pointer type and a reference type are not the same types.

As Slacker showed, you can dereference the pointer to get the object at that address and then send that object to the function.