I have the following C++ code:

typedef int* IntPtr;
const int* cip = new int;
const IntPtr ctip4 = cip;

I compile this with Visual Studio 2008 and get the following error:

error C2440: 'initializing' : cannot convert from 'const int *' to 'const IntPtr'

Clearly my understanding of typedefs is not what is should be.

The reason I'm asking, I'm storing a pointer type in a STL map. I have a function that returns a const pointer which I would like to use to search in the map (using map::find(const key_type&). Since

const MyType* 

and

const map<MyType*, somedata>::key_type

is incompatible, I'm having problems.

Regards Dirk