Help with counter

[Huppa]

How would I add studentCounter to count while 1 and 2 are input?

//examgrade.cpp

#include <iostream.h>
#include <iomanip.h>
#include <conio.h>


           
   int main()
           
   
   
   {
   
      int passed = 0; //number of passes
      int failures = 0; //number of failures
      int studentCounter = 0; //student counter
      int result; //one exam result (1=pass, 2=fail)
   
      while (result != -1)
      {
      //prompt user for input & obtain val.
         cout << "Enter result (1=pass, 2=fail, -1=done): ";
         cin >> result; //input result
         
      
      //counters
         if (result == 1)
            passed = passed + 1;
         else if (result == 2)
            failures = failures + 1;
      }
   
      cout << "The number of students that passed were: " << passed << "\nThe number of students that failed were: " << failures << endl;
      cout << "There was a total of: " << studentCounter << " students that took the test." << endl;
   
      if (passed > 8)
         cout << "Raise tuition " << endl;
   }

[wildblue]

You can increment student counter in the same block where you increment passes and failures. Just use curly braces so that the compiler knows you want to perform multiple statements.

	//counters
	if (result == 1)
	{
		passed = passed + 1;
		studentcounter++;
	}
	else if (result == 2)
	{
		failures = failures + 1;
		studentcounter++;
	}

[Huppa]

           
   int main()
           
   
   
   {
   
      int passed = 0; //number of passes
      int failures = 0; //number of failures
      int studentCounter = 0; //number of students
      int result; //one exam result (1=pass, 2=fail)
   
      while (result != -1)
      {
      //prompt user for input & obtain val.
         cout << "Enter result (1=pass, 2=fail, -1=done): ";
         cin >> result; //input result
      
      //counters
         if (result == 1)
         {
            passed = passed + 1;
            studentCounter++;
         }
         else if (result == 2)
         {
            failures = failures + 1;
            studentCounter++;
         }

I'm getting a Syntax (parse) error at or before end of file. Where else am I suppose to enter a brace?

EDIT: I only ask because putting a brace at the end of the while will just end the statement, won't it?

[giblit]

Also this should be avoided:

      int result; //one exam result (1=pass, 2=fail)
   
      while (result != -1)

Result is undefined therefore it could have any value the first time.

[Huppa]

Result is undefined therefore it could have any value the first time.

Thanks. How should I re-write it?

[wildblue]

You'll still need a closing brace for the while statement.

[giblit]

@Huppa give it an initial value of anything besides -1. so maybe int result = 0;

[Huppa]

You'll still need a closing brace for the while statement.

When I enter the braces you suggested, I get all 0's for the outputs.

[Huppa]

@Huppa give it an initial value of anything besides -1. so maybe int result = 0;

Thanks for the help.