searching thru a c++ class array

so i have gone thru my c++ class array and entered all the info needed.....

class student
{
private:
int ID;
etc....
};

student stan[10];

i have asked the user to enter his/her id # how do i check to verify that the # entered exists in the array stan[10]? (i know a for loop will start the process..)

stan
thanks

You could make a function similar to this:

Code:

---

bool CheckForDupes(int iTest)
{
bool RetVal=false;
for(int i=0;i<10;i++) //of course, i<? would be your array size
{
if(stan[i].GetID()==iTest)
{
RetVal=true; //duplicate found;
}
}
return(RetVal);
}

---

then use this function like this:

Code:

---

int NewID, i=0;
while(i<10)
{
  cin>>NewID;
  if(CheckForDupes(NewID))
  {
    cout<<"Enter another ID. This one already exists."<<"\n";
    }
    else
    {
      stan[i].SetID(NewID);
      i++;
    }
}

---

This is basically what I PM'ed you except that I added the while loop here for a little more clarity. Hope this helps.