how to use backspace in password?

[tjnapster555]

http://www.cplusplus.com/forum/general/3570/#msg15121

#include <iostream>
#include <string>
#include <conio.h>
using namespace std;
int main(){
   string pass ="";
   char ch;
   cout << "Enter pass\n";
   ch = _getch();
   while(ch != 13){//character 13 is enter

if(ch != 8)
{      pass.push_back(ch);
      cout << '*';
}
      ch = _getch();
   }
   if(pass == "hello"){
      cout << "\nAccess granted :P\n";
   }else{
      cout << "\nAccess aborted...\n";
   }
getch();
}

the code use in above link is good but one problem i cant able to use backspace to remove mistake if user made any mistake he cant able to remove the mistaken character i need help is this

[TwilightSpectre]

That has a few other problems. Firstly, you should avoid conio.h (its been deprecated for a LONG time). Secondly, its not a good idea to directly code in ascii values either - it has hard to read. Try this example from further down the thread that you quoted from:

Duoas wrote:

#include <iostream>
#include <stdexcept>
#include <string>
#include <windows.h>
using namespace std;

string getpassword( const string& prompt = "Enter password> " )
  {
  string result;

  // Set the console mode to no-echo, not-line-buffered input
  DWORD mode, count;
  HANDLE ih = GetStdHandle( STD_INPUT_HANDLE  );
  HANDLE oh = GetStdHandle( STD_OUTPUT_HANDLE );
  if (!GetConsoleMode( ih, &mode ))
    throw runtime_error(
      "getpassword: You must be connected to a console to use this program.\n"
      );
  SetConsoleMode( ih, mode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT) );

  // Get the password string
  WriteConsoleA( oh, prompt.c_str(), prompt.length(), &count, NULL );
  char c;
  while (ReadConsoleA( ih, &c, 1, &count, NULL) && (c != '\r') && (c != '\n'))
    {
    if (c == '\b')
      {
      if (result.length())
        {
        WriteConsoleA( oh, "\b \b", 3, &count, NULL );
        result.erase( result.end() -1 );
        }
      }
    else
      {
      WriteConsoleA( oh, "*", 1, &count, NULL );
      result.push_back( c );
      }
    }

  // Restore the console mode
  SetConsoleMode( ih, mode );

  return result;
  }

int main()
  {
  try {

    string password = getpassword( "Enter a test password> " );
    cout << "\nYour password is " << password << endl;

    }
  catch (exception& e)
    {
    cerr << e.what();
    return 1;
    }

  return 0;
  }

[Codermik]

I replied to your post here on the same subject: http://www.cplusplus.com/forum/beginner/132480/