Thread: Help with calculating student GPA

This is what I have right now, I need it to calculate and print the gpa but I have no clue on how to do it.

The text document I am using has the following in it:
Intro to Programming in C:4.5:3.67
Intermediate Accounting:5:4.00

Code:

#include <stdio.h>
#include <stdlib.h> 
#include <ctype.h> 
#include <iostream>


void getchoice (void);
void getinfo (void);

int main (void)
{
    int choice;

    getchoice ();
    return 0;
}


void getchoice (void)
{
    int choice;

    do
    {
        printf ("Select where to print transcript: 1 to file or 2 to screen");
        scanf ("%d", &choice);
     
        if (choice == 1)
        {
            printf ("printing to file\n");
            
        }
        else if (choice == 2)
        {
            printf ("printing to screen\n");
            getinfo ();
        }
        else
        {
            printf ("please choose either 1 or 2");
        }
    }
    while (choice != 1 && choice != 2);
}


void getinfo (void)
{
    FILE * in;
    FILE * out;
    float units;
    float gpa;
    char var;

    if ( (in = fopen ("record1.txt", "r")) == NULL)
    {
        printf ("error opening file");
        
    }
    while ((fscanf_s(in, "%c", &var)) != EOF)
    {
        printf ("%c", var);
        if (var == ':')
    {
    fscanf (in, "%f:%f", &units, &gpa);
    }
    }

    fclose (in);
}

This is the conversion table I came up with

Code:

    if (gpa >= 3.99 && gpa <= 4.01)
        printf ("A");
    else if (gpa >= 3.66 && gpa <= 3.68)
       printf ("A-");
    else if (gpa >= 3.32 && gpa <= 3.34)
        printf ("B+");
    else if (gpa >= 2.99 && gpa <= 3.01)
         printf ("B");
    else if (gpa >= 2.66 && gpa <= 2.68)
        printf ("B-");
    else if (gpa >= 2.32 && gpa <= 3.34)
        printf ("C+");
    else if (gpa >= 1.99 && gpa <= 2.01)
        printf ("C");
    else if (gpa >= 1.66 && gpa <= 1.68)
         printf ("D+");
    else if (gpa >= 1.32 && gpa <= 1.34)
         printf ("D");
    else if (gpa >= 0.99 && gpa <= 1.01)
        printf ("D-");
    else
        printf ("F");

Originally Posted by MK27

Sheesh, there are some massive holes in that. What if I got a 4.2 GPA, or a 3.5? Etc.

then you get an F, and that's your own fault :P