C++/File/rename — различия между версиями

  
#include <iostream>
#include <cstdio>
#include <cstring>
#include <fstream>
using namespace std;
int main(int argc, char *argv[]){
  int result;
  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;
}