I have a code that acts as a login system. You can log into a computer, logout, search for users that are logged in, and then quit the program.
The computer lab looks like this:
Lab# Computers
1 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
2 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
3 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
4 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
The user selects the option to login to one of the computers with a five character username. The user logs into lab 2, computer 3, (lets say with username "abcde") After logging in the display SHOULD say this.
Lab# Computers
1 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
2 1: empty 2: empty 3: abcde 4: empty 5: empty ...(Goes until 10)
3 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
4 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
Here's my problem: When logging in my display looks like
Lab# Computers
1 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
2 1: empty 2: empty abcde 4: empty 5: empty ...(Goes until 10)
3 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
4 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
Where the 3 goes missing. I can't figure out how to keep the 3: so that the display reads:
Lab# Computers
1 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
2 1: empty 2: empty 3: abcde 4: empty 5: empty ...(Goes until 10)
3 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
4 1: empty 2: empty 3: empty 4: empty 5: empty ...(Goes until 10)
Here's two of the functions I used.
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void showStatus()
{
int i,j;
cout<<"\nSTATUS\n";
cout<<"Lab# Computers\n";
for(i=0;i<rows;i++)
{
cout<<(i+1)<<"\t";
for(j=0;j<cols;j++)
{
if(labs[i][j]=="empty")
cout<<(j+1)<<": empty " ;
else
cout<<labs[i][j]<<" ";
}
cout<<"\n";
}
}
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AND
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void login()
{
string id,tid;
int i,j,labid,cid,flag=0;
while(true)
{
cout << "Enter your 5-character ID to login: ";
cin >> id;
if (id == "empty")
cout << "Invalid ID" << endl;
else if(id.size() == 5)
{
cout << "Enter the lab # (1-4): ";
cin >> labid;
if(labid >= 1 && labid <= 4)
{
cout << "Enter the Computer # (1-10): ";
cin >> cid;
if(cid >= 1 && cid <= 10)
break;
cout<<"\nInvalid computer id\n\n";
}
else
cout<<"\nInvalid Input\n\n";
}
else
cout<<"\nInvalid Input\n\n";
}
tid = labs[labid-1][cid-1];
if(tid != "empty")
{
cout<<"ERROR, user "<<tid<<" is already logged into that station\n";
}
else
{
flag=0;
for(i=0;i<rows;i++)
{
for(j=0;j<cols;j++)
{
if(labs[i][j]==id)
{
flag=1;
labid=i;
cid=j;
break;
}
}
}
if(flag==1)
cout<<"User "<<id<<" is in lab #"<<labid+1<<" at Computer #"<<cid+1<<"\n\n";
else
labs[labid-1][cid-1]=id;
}
}
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labs was defined under class and before public as
string** labs;