Comment tourner System :: String ^ En STD :: String?

Donc, je travaille dans CLR, Création de .NET DLL dans Visual C ++.

i TRU ce code: P>

#include <msclr\marshal.h>
#include <stdlib.h>
#include <string.h>
using namespace msclr::interop;
namespace NSSTW
{
  public ref class CFEW
  {
 public:
     CFEW() {}

     static System::String^ echo(System::String^ stringToReturn)
    {
        return stringToReturn;  
    }

     static bool InitFile(System::String^ fileName, System::String^ container)
    {   
        std::string sys_fileName = marshal_as<std::string>(fileName);;
        std::string sys_container = marshal_as<std::string>(container);;
        return enc.InitFile(sys_fileName, sys_container);
    }
...