unmanaged code data type *****alents in c#

[C# Programming]

Hi,

I am using some unmanaged Dlls and need *****alent types when calling the functions in these DLLs from managed C# code:

For e.g.: const char** = ref string, const char* = string, char** = out IntPtr.

Does anyone know the *****alents for these?

int* = ?
char**** = ?
char*** = ?
float* = ?
uint64* = ?
double* = ?

thanks