Hi, I am supose to do a program in C++ that tests for a password
it should do the following:
a- the password should be between 6 and nine characters
b- the password should contain at least one upper case and at least one lowercase letter
c- the password should contain at least one digit
the program works fine to check for requirements b and c but it does not work properly when I check the string length here is the code I got so far:
Thanks is advance :)
#include <iostream>
#include <cctype>
#include <cstring>
using namespace std;
bool testlower( char [], int);
bool testupper( char[], int);
bool testdigit( char[],int);
bool testnum(char[]);
int main()
{
int const size = 10; //can handle 9 characters
char password[size];
cout <<" Enter your password:" <<endl;
cout <<" Make sure that its more than six characters\n";
cout <<" and its less than 9 characters long.\n";
cout <<" has at least one digit and \n";
cout <<" at least one uppercase and lower case letter\n";
cout <<" otherwise the program wont work proberly, thank you for you cooporation\n";
cin.getline(password,size);
if ((testlower( password, size) && testupper (password,size) && testdigit ( password,size)&& testnum(password))== true)
cout <<"the password that you entered is valid\n";
if ( testlower( password,size) == false )
{
cout<<" the password that you entered is invalid because there is\n";
cout<<" no lower case letter in your password.\n";
}
if( testupper( password, size) == false)
{
cout<<" the password that you entered is invalid because there is\n";
cout<<" no upper case letter in your password.\n";
}
if ( testdigit(password,size) == false)
{
cout<<" the password that you enterd is invalid because there is\n";
cout<<" not digits in your password\n";
}
if (testnum(password)== false)
{
cout<<" the password that you entered is invalid because the number\n";
cout<<" of characters is less than 6 or is more than 9 \n";
}
return 0;
}
//-------------------------------------------------------
bool testlower(char password[], int size)
{
for ( int count=0; count < (size-1); count++)
{
if( islower(password[count]))
return true;
}
return false;
}
//--------------------------------------------------------
bool testupper( char password[], int size)
{
for ( int count=0; count < (size-1); count++)
{
if ( isupper( password[count]))
return true;
}
return false;
}
//-------------------------------------------------------
bool testdigit( char password[], int size)
{
for ( int count=0; count < (size-1); count++)
{
if ( isdigit(password[count]))
return true;
}
return false;
}
//this is where the code in not working properly I tried to modify it in many ways
//but still can't get the right asnwer
bool testnum( char password[])
{
int length;
length = strlen(password);
if( length < 6 || length <=9)
{
return false;
}
return true;
}
