#"Identifier is undefined"

1 messages · Page 1 of 1 (latest)

woeful pilot
#

My code gives me the error "Identifier is undefined" and I have no clue why

slate egretBOT
#

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woeful pilot
# 
{
    int TotalGrade = 1000;
    int grade; 

    char Assignment(string assignment);  {

        cout << "Please enter the score for " << assignment;
        cin >> grade;
    }
    
    Assignment("Assignment #01");
    
    _getch();
        return 0;
}```
#

It's saying "assignment" is undefined

next shadow
#

You can't define a function inside another function

woeful pilot
#

you can't?

#

is that just a python thing lmao

next shadow
#

It depends on the language
C and C++ you can't (save for lambdas in c++)

woeful pilot
#

I get so confused with C and C++

#

if I take it out of main it just fills with tons of errors

next shadow
#

What is the error in question?

woeful pilot
next shadow
#

Can you share your updated code?

woeful pilot
# 
int TotalGrade = 1000;
int grade; 

char Assignment(string assignment);  {

    cout << "Please enter the score for " << assignment;
    cin >> grade;
    }
    
Assignment("Assignment #01");
    
_getch();
    return 0;
next shadow
#

You still need a main function.
Code does not execute outside of a function

woeful pilot
#

I'm so confused, you said I can't define a function inside of it

next shadow
#

Put main around the code AFTER the Assignment function

woeful pilot
# 
int TotalGrade = 1000;
int grade; 

char Assignment(string assignment); 
{

    cout << "Please enter the score for " << assignment;
    cin >> grade;
}
    
main() {

    Assignment("Assignment #01");

    _getch();
    return 0;
}
#

now I'm getting "Type char unexpected"

next shadow
#

Okay last thing, you don't need a ; between the function arguments and the body of Assignment's definition

#

Oh and you need main to return an int

woeful pilot
next shadow
#

Add the word int in front of main

woeful pilot
#

Oml finally thank you so much

#

python is so much easier 😭

knotty vale
#
  1. The Assignment function name is not good as it doesn't describe what the function does. Maybe input_grades could be used as it's name?
  2. Since grade is a integer value you should return int.
  3. The value returned from the function call is not being assigned to a variable.
  4. Not sure what the _getch() is for
woeful pilot
#

tbh our teacher puts _getch() in every single template but never told us what it's for

#

It doesn't run properly without it, gives me a bunch of weird stuff at the end of the console without it

woeful pilot
knotty vale
#

I get that but function names have to be descriptive

#

without looking at the implementation you should figure out what it does just by the name

woeful pilot
#

I mean it quite literally just replaces the assignment name

#

I have another question tho @knotty vale, How can I use the cin value to add to a variable instead of setting it

# 
cout << "Please enter the score for " << assignment << ": ";
cin >> grade;
return 0;
#

I want cin to add to 'grade' instead of setting it

knotty vale
#

You would need an array or vector if I'm understanding what you're saying correctly

woeful pilot
#

Would you mind giving me an example?

knotty vale
#

You mean like tracking multiple student grades right?

woeful pilot
#

So the assignment is a grade calculator, I take the grades of multiple assignments and essentially output a prediction of how much I need to get certain grades

#

I'm wanting to make it so when you input the grade of an assignment, it adds that input to the "grade" variable

#

instead of setting it

knotty vale
#

If you know the specific amount of grades to input using an array is pretty good otherwise you can use a vector.

This is the example for an array

int grades[10];
for(int i = 0; i < grades.size(); i++){
std::cin >> grades[i];
}
slate egretBOT
#

@woeful pilot Has your question been resolved? If so, type !solved :)

woeful pilot
#

I must've accidentaly skipped something in my course lmao

knotty vale
#

I’m guessing for every assignment it lists the amount of students, so I’ll keep going with arrays

woeful pilot
#

It's not for multiple students

#

it's a personal grade calculator, only needs the one grade total

knotty vale
#

Can you post the assignment details cause if it’s a personal grade calculator you could do it all in the main function

woeful pilot
#

I figured it out lmao, incredibly simple

#

LIterally just created a second variable, and inside of the function added the "grade" variable to the "totalgrade"

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it's an extra line of code than what I had intended but it works perfect

knotty vale
woeful pilot
# 
{

    cout << "Please enter the score for " << assignment << ": ";
    cin >> grade;
    TotalGrade = grade + TotalGrade;
    return 0;
}```
knotty vale
#

Make the char Assignment_Grade return void if you don’t have to return anything