将txt复制到txt c和c ++

Question

#include <cstdlib>
#include <cstring>
#include <iostream>
#include <stdio.h> //Adding libraries
using namespace std;

int main() {
  bool endp = false;
  FILE *fp, *rvr; // first file and second
  char namefile[39];
  char newname[30];
  bool truef1 = true;
  bool truef2 = true;

  while (endp != true) // while true cases will happened
  {
    cout << "Check your number"
         << "\n 1 ::  Create new file"
         << "\n 2 ::  Create copy of previous file"
         << "\n 3 ::  Create copy without spaces"
         << "\n 4 ::  merge 2 files"
         << "\n 5 ::  Count number of charasters"
         << "\n 6 ::  Quit" << endl;
    int switcher;
    cin >> switcher;

    switch (switcher) {
    case 1:
      cout << "You checked 1\n Please write name for the file" << endl;
      char asd[100], finishname[40];
      strcpy(finishname, "");
      while (truef1) // for writing names of files within spaces until selectin
                     // Enter
      {
        cin >> namefile;
        if (cin.get() == '\n') {
          truef1 = false;
          cout << "It's working!";
        }

        strcat(finishname, namefile);
        strcat(finishname, " ");
      }
      truef1 = true; // for returning if you will select case 1 again
      strcpy(asd, "C:\\Intel\\");
      strcat(asd, finishname);
      strcat(asd, ".txt");
      fp = fopen(asd, "w");
      fclose(fp);
      strcpy(asd, "");
      cout << "End of 1" << endl;
      break;

    case 2:
      cout << "Copying the file \n please write filename of copying file "
           << endl;
      char newname[30], finishnewname[80], copyr[40], finishcopy[80];

      while (truef2) {
        cout << "Please write name of file from which have you like take copy"
             << endl;
        cin >> copyr;
        if (cin.get() == '\n') {
          truef2 = false;
          cout << "It's working" << endl;
        }
        strcat(finishcopy, copyr);
      }
      truef2 = true;
      cout << "Please write name of copy file " << endl;
      while (truef2) {
        cin >> newname;
        if (cin.get() == '\n') {
          truef2 = false;
          cout << "It's working!";
        }
        strcat(finishnewname, newname);
        strcat(finishnewname, " ");
      }
      truef2 = true;

      char qwe[100], zxc[100];
      strcpy(qwe, "C:\\Intel\\");
      strcat(qwe, finishnewname);
      strcat(qwe, ".txt");
      rvr = fopen(qwe, "w");
      strcpy(zxc, "C:\\Intel\\");
      strcat(zxc, finishcopy);
      strcat(zxc, ".txt");
      fp = fopen(zxc, "r");
      if (!fp)
        cout << "Error" << endl;
      while (!feof(fp))
        fputc(fgetc(fp), rvr);

      cout << "End of 2\n\n";
      fclose(rvr);
      fclose(fp);
      break;
    case 3:
      cout << "End of 3";

      break;
    case 4:
      cout << "End of 4";

      break;
    case 5:
      cout << "End of 5";

      break;
    case 6:
      cout << "Quit end of programm,Good bue" << endl;
      endp = true;
      break;
    default:
      cout << "Wrong input, let's try again";
      break;
    }
  }
}

我没有找到我失踪的人。情况1应该在给定名称中添加目录一个文件。 接下来在案例2中我应该复制任何位于英特尔目录中的文件，但是在工作过程中，他给我的错误是文件不是激动并创建空文件。案例2应将所选文件的内容复制到其他文件。我没有找到我失踪的人。请帮帮我。