(Help please) Question on more than one functions

[whatever1]

I'm having some problems working a assignment I'm working on. It doesn't work! The program is suppose to output a letter grade given a student's test score. There is a main function and four functions for the four subtasks. Here the code. Thank you very much for your help!


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

using namespace std;

void GetScore(double score);
//Purpose: This function asks the user to enter a score between 0 and 100
// inclusive. If the score is not between the two values then print
// an error message and ask for another score.
//
// Precondition:
// None
// Postcondition:
// The value of number has been set to an integer between 1 and 100 inclusive
//------------------------------------------------------------------------------

void DetermineGrade(double score, char grade);
//Purpose: This function determines the score and displays the grade for the
// value.
//
//Precondition:
// Grade is assigned.
//Postcondition:
// The score will determine and grade will be diplayed.
//------------------------------------------------------------------------------

void PrintGrade(double score, char grade);
//Purpose: This function prints the grade and score.
//
//Precondition:
//
//Postcondition:
//
//------------------------------------------------------------------------------

//void GetResponse(char response);
//Purpose: This function will ask whether they want to continue or not.
//
//Precondition:
//
//Postcondition:
//
//------------------------------------------------------------------------------

int main()
{
double score;
char grade;


GetScore( score);

cout << &quot;Please enter your score between 0 and 100 &quot;;
cin >> score;

getch();
return 0;
}

//------------------------------------------------------------------------------

void GetScore(double score)
{

cout << &quot;Please enter your score between 0 and 100 &quot;;
cin >> score;

while ((score < 0) || (score > 100))
{
cout << &quot;The score is: &quot; << score << &quot; is not between 1 and 100 inclusive.\n&quot;;
cout << &quot;Try again. Enter a score between 1 and 100: &quot;;
cin >> score;
}

}

void DetermineGrade(double score, char grade)
{

if (score >= 85)
grade = 'A';
else if (score >= 70)
grade = 'B';
else if (score >= 60)
grade = 'C';
else if (score >= 50)
grade = 'D';
else
grade = 'F';

}

void PrintGrade(double score, char grade)
{

cout << &quot;The score is: &quot; << score << endl;
cout << &quot;The grade is: &quot; << grade << endl;

}

 

[LyMc]

Perhaps because you don't call DetermineGrade or PrintGrade anywhere?

 

[sandup]

void GetScore(double& score);
void DetermineGrade(double score, char& grade);

notice the &'s. You need to mark these parameters as references so the functions can change them and the values still exist after the functions have exited. Otherwise they're deleted.

 

[Cagliostro]

whatever1, you should walk your code with debugger. After that, put it in the forum, if something is not clear.

Ion Filipski

ICQ: 95034075
AIM: IonFilipski
filipski@excite.com