Demonstrate rename() and remove() on file - C++ File Stream

C++ examples for File Stream:File Operation

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Description

Demonstrate rename() and remove() on file

Demo Code

#include <iostream>
#include <cstdio>
#include <cstring>
#include <fstream>
using namespace std;

int main(int argc, char *argv[])
{
   int result;/*from w w w.j av  a  2 s .  com*/
   if(argc != 2) {
      printf("usage: EraseRenname <erase/rename>\n");
      exit(1);
   }
   ofstream fout("test.dat");
   if(!fout) {
      cout << "Cannot open test.dat file.\n";
      return 1;
   }
   fout << "Write some data to the file.";
   fout.close();
   if(!fout.good()) {
      cout << "Error writing to or closing file.\n";
      return 0;
   }
   if(!strcmp("erase", argv[1])) {
      result = remove("test2.dat");
      if(result) {
         cout << "Cannot remove file.\n";
         return 1;
      }
   } else if(!strcmp("rename", argv[1])) {
      result = rename("test.dat", "test2.dat");
      if(result) {
         cout << "Cannot rename file.\n";
         return 1;
      }
   } else
   cout << "Invalid command-line argument.\n";
   return 0;
}

Result


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