Question

C Programming

Debug -> error: expected expression before 'score'

typedef enum LetterGrade {
    A = 4,
    B = 3,
    C = 2,
    D = 1,
    F = 0
} score;

score getLetterGradeFromAverage(const double avg)
{
    if (avg >= 90)
        return score::A;         // error here
    else if (avg >= 80)
        return score::B;        // error here
    else if (avg >= 70)
        return score::C;       // error here
    else if (avg >= 60)
        return score::D;       // error here
    else
        return score::F;        // error here
}

Answer 1

/*

In standard c, things to the left of "::" MUST BE STRUCT, enums don't count.

*/

#include<stdio.h>
typedef enum LetterGrade {
A = 4,
B = 3,
C = 2,
D = 1,
F = 0
}score ;

score getLetterGradeFromAverage(const double avg)
{

if (avg >= 90)
return A;   
else if (avg >= 80)
return B;
else if (avg >= 70)
return C;   
else if (avg >= 60)
return D;   
else
return F;
}

int main(){
   int avg = 90;
   if(A == getLetterGradeFromAverage(avg)){
       printf("A");
   }else if(B == getLetterGradeFromAverage(avg)){
       printf("B");
   }else if(C == getLetterGradeFromAverage(avg)){
       printf("C");
   }else if(D == getLetterGradeFromAverage(avg)){
       printf("D");
   }else if(F == getLetterGradeFromAverage(avg)){
       printf("F");
   }
}