#include <memory>
 #include <fstream>
 
 #include "sys_fstream.h"
 
 namespace {
 class impl : public fstreams_ifc {
     public:
         pstream open_fstream(const std::string &file_path) {
             return pstream(new std::ifstream(file_path));
         }
 };
 
 
 }
 
 
 fstreams fstreams::create()  {
     static fstreams singleton(delegate(new impl));
     return singleton;
 }