c++ cli - Calling c++ generic method from C# -

i created c++ 64-bit library follows

// unmanagedcli.h  #pragma once  using namespace system; using namespace system::runtime::interopservices;  namespace unmanagedcli {      [dllimport("msvcrt.dll", entrypoint = "memset", callingconvention = callingconvention::cdecl, setlasterror = false)]     extern intptr memset(intptr dest, int c, int count);      //[system::runtime::compilerservices::extensionattribute]     public ref class unmanaged sealed     {     public:         static void free(void* unmanagedpointer)         {             marshal::freehglobal(intptr(unmanagedpointer));         }          generic <typename t> t : value class             static intptr new(int elementcount)         {             return marshal::allochglobal(sizeof(t) * elementcount);         }           generic <typename t> t : value class             static intptr newandinit(int elementcount)         {             int sizeinbytes = sizeof(t) * elementcount;             intptr newarrayptr = marshal::allochglobal(sizeinbytes);             memset(newarrayptr, 0 , sizeinbytes);             return newarrayptr;         }          generic <typename t> t : value class             static void* resize(void* oldpointer, int newelementcount)         {             return marshal::reallochglobal(intptr(oldpointer),                  intptr((int) sizeof(t) * newelementcount)).topointer();         }     }; } 

from c# include reference, check unsafe code in build, , in main this:

using unmanagedcli;  unsafe class testwriter {     static void main()     {         unmanaged un;          //i can't access of c++ methods in here?     } } 

when un. don't see of methods in c++/cli library? builds , runs fine, cannot access c++ @ all.

all methods of c+++/cli class (unmanaged) static. try using unmanaged.method syntax in c# (you don't have create object).