Sentinel while loop and errors.
I have to write a program that calculates a student's term GPA.
inputs- the letter grade and the credits for each course.
but , the letter grade has two character the letter and the suffix ex. B+, i'm not sure how to enter these two characters. Also , I have to add 1/3 or subtract 1/3 depending on the suffix.
the specific requirements are to use a sentinel-terminated while loop, at least one switch statement and if-else statements.
Any number of grades may be entered, ending with a sentinel 0 for the course credits.
i tried testing it and it said "unexpected end of file while looking for precompiled header directive ??? what does it mean?
this is what i have so far, please help!!
#include "stdio.h" /* printf and scanf definitions */
#define SENTINEL 0 /* value for the program to terminate */
char grade; /* input-letter grade per class */
char suffix; /* input-suffix of the letter grade, if any */
int credits=0; /* credits per class */
int sumcredits=0; /* total credits for the term */
double classGPA=0; /* gpa of a single class */
double termGPA=0; /* output-gpa of the term */
/* Get grade and credits */
printf("Enter first grade and corresponding credits or %d to finish > ", SENTINEL);
scanf("%c%c %d", &grade, &suffix, &credits);
while !(grade == SENTINEL && credits == SENTINEL)
printf("GPA cannot be calculated with the grade entered");
if(suffix == '+')
grade = grade + (1/3);
else if(suffix == '-')
grade = grade - (1/3);
grade = grade;
classGPA = (classGPA)* credits;
sumcredits = sumcredits + credits;
termGPA = classGPA / sumcredits;
printf(" the student's GPA for the term is %.3f \n", termGPA);