Thread: Spot the error

Anyone care to help me in getting my program to compile, there are currently 3 errors in my code. Any help appreciated.

#include <iostream.h>
#include <string.h>
main()
{

const int max_size = 80;
char *password[] = {"aa0001", "aa0002", "aa0003", "aa0004", "aa0005", "aa0006",
"aa0007", "aa0008", "aa0009", "aa00010"};
char new_password[],answer;
int index, x,i, count, loop;


for (loop=0; loop <10 loop++)
{
count =0;

do
{


while ((new_password != password[i]) && (count <3))
{
cout << "enter a word up to 80 chars ";
cin >> new_password[i];

index = strlen(new_password);

if (new_password == password[0]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 1 ACCESS GRANTED!" << endl;
}

if (new_password == password[1]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 2 ACCESS GRANTED!" << endl;
}

if (new_password == password[2]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 3 ACCESS GRANTED!" << endl;
}

if (new_password == password[3]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 4 ACCESS GRANTED!" << endl;
}

if (new_password == password[4]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 5 ACCESS GRANTED!" << endl;
}

if (new_password == password[5]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 6 ACCESS GRANTED!" << endl;
}

if (new_password == password[6]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 7 ACCESS GRANTED!" << endl;
}

if (new_password == password[7]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 8 ACCESS GRANTED!" << endl;
}

if (new_password == password[8]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 9 ACCESS GRANTED!" << endl;
}

if (new_password == password[9]) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 10 ACCESS GRANTED!" << endl;
}

else
{
cout << "INVALID PASS" <<endl;
++count;
}

if (count >2)
cout <<"3 wrong attempts" << endl;

}


cout << "would you like another go ";
cin >> answer;

}
while (answer =='y');
}
return 0;
}

thanx for the input guys as u can probably tell im new to c++ ive corrected those mistakes which u have pointed out and it now compiles but doent work as i had hoped.

#include <iostream.h>
#include <string.h>
main()
{

const int max_size = 80;
char *password[] = {"aa0001", "aa0002", "aa0003", "aa0004", "aa0005", "aa0006",
"aa0007", "aa0008", "aa0009", "aa00010"};
char new_password[10],answer;
int index,count,loop,a,b,c,d,e,f,g,h,i,j;


for (loop=0; loop <10; loop++)
{
count =0;


do
{


while (count <3)
{
cout << "enter a password ";
cin >> new_password;

index = strlen(new_password);
a = strcmp(password[0],new_password);
b = strcmp(password[1],new_password);
c = strcmp(password[2],new_password);
d = strcmp(password[3],new_password);
e = strcmp(password[4],new_password);
f = strcmp(password[5],new_password);
g = strcmp(password[6],new_password);
h = strcmp(password[7],new_password);
i = strcmp(password[8],new_password);
j = strcmp(password[9],new_password);

if ((a ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 1 ACCESS GRANTED!" << endl;
}

if ((b ==0 ) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 2 ACCESS GRANTED!" << endl;
}

if ((c ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 3 ACCESS GRANTED!" << endl;
}

if ((d ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 4 ACCESS GRANTED!" << endl;
}

if ((e ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 5 ACCESS GRANTED!" << endl;
}

if ((f ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 6 ACCESS GRANTED!" << endl;
}

if ((g ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 7 ACCESS GRANTED!" << endl;
}

if ((h ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 8 ACCESS GRANTED!" << endl;
}

if ((i ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 9 ACCESS GRANTED!" << endl;
}

if ((j ==0) && (index <7))
{
cout << "VALID PASS" <<endl;
cout <<"Level 10 ACCESS GRANTED!" << endl;
}

else
{
cout << "INVALID PASS" <<endl;
++count;
}

if (count >2)
cout <<"3 wrong attempts" << endl;

}


cout << "would you like another go ";
cin >> answer;

}
while (answer =='n');
}
return 0;
}

whats happen is that when you input a password which is correct the right message appears but so does the "INVALID PASSWORD" any one have any idea why?

Also the for loop appears not to be working corractly, as i thought it would loop 10 times allowing u to enter 10 passwords in before it asked u if u wanted another go.

Any more help greatly appreciated.

In his program, he uses a lot of if statements. I have had to do this before as well. I was wondering if there was a more effecient way to do this.

how would i do that if i wanted to use strcmp??