Functions, Scan, and Conditionals project | Together C & C++ | Page 1

shadow marsh Nov 3, 2023, 8:13 AM

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I have done a simple calculator project, but there seems to be many errors.
I have attatched my code so far and the instructions.

int main() {}

📎 message.txt

stuck sandalBOT Nov 3, 2023, 8:13 AM

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shadow marsh Nov 3, 2023, 8:13 AM

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these are the instructions,

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Screen_Shot_2023-11-02_at_8.02.21_PM.png

Screen_Shot_2023-11-02_at_8.02.29_PM.png

Screen_Shot_2023-11-02_at_8.02.34_PM.png

Screen_Shot_2023-11-02_at_8.02.41_PM.png

Screen_Shot_2023-11-02_at_8.02.46_PM.png

Screen_Shot_2023-11-02_at_8.02.51_PM.png

Screen_Shot_2023-11-02_at_8.02.56_PM.png

Screen_Shot_2023-11-02_at_8.03.02_PM.png

Screen_Shot_2023-11-02_at_8.03.05_PM.png

Screen_Shot_2023-11-02_at_8.03.09_PM.png

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what is wrong with my code?

shadow marsh Nov 3, 2023, 9:19 AM

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I think my middle part is all correct

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but it's my first and last part that's tripping me

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nothing appears on the terminal when i try to run it

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📎 message.txt

visual saffron Nov 3, 2023, 9:32 AM

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shadow marsh

!f

stuck sandalBOT Nov 3, 2023, 9:32 AM

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visual saffron !f

Internal error while running !f

shadow marsh Nov 3, 2023, 9:35 AM

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@visual saffron this is the new thread

visual saffron Nov 3, 2023, 9:35 AM

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Yep, I am already looking at the code.

shadow marsh Nov 3, 2023, 9:36 AM

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ok thx

visual saffron Nov 3, 2023, 9:44 AM

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I think your understanding of a programming language may be a little "off".

shadow marsh Nov 3, 2023, 9:45 AM

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oh

visual saffron Nov 3, 2023, 9:47 AM

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A function may call another function.
Which in turn may call another function.

But that does not mean that all functions in a program must be "daisy-chained".

Your main() calls welcomeScreen().
welcomeScreen() then calls intermediateCalculator() and then prints "Thank You".

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It doesn't quite work, and you could make it work like that.
But it's not quite right.

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Function welcomeScreen() should just print a message to the screen.
When that's done, the function returns to main().
Then it should call intermediateCalculator().

shadow marsh Nov 3, 2023, 9:49 AM

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oh

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but in the instructions i got

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Screen_Shot_2023-11-03_at_6.49.18_PM.png

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this is the last part

visual saffron Nov 3, 2023, 9:49 AM

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Whoaahh!

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I am so sorry.

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Ignore everything I said.
You are just following instructions.

shadow marsh Nov 3, 2023, 9:50 AM

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right yea

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i provided the instruction pics on top

visual saffron Nov 3, 2023, 9:50 AM

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Yeah, sorry.
I cut a corner and didn't read those.

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Bit me in the [redacted], as usual.

shadow marsh Nov 3, 2023, 9:51 AM

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it's alright it's alright

visual saffron Nov 3, 2023, 9:52 AM

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Your immediate issue is easily solved

void welcomeScreen (void) {
    printf("\nWelcome to the Intermediate Calculator~!\n");
    intermediateCalculator();
    printf("Thank you\n");
}

shadow marsh Nov 3, 2023, 9:53 AM

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that's the last part right?

visual saffron Nov 3, 2023, 9:53 AM

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No, the call to intermediateCalculator().

shadow marsh Nov 3, 2023, 9:53 AM

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so the start?

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which part is that

visual saffron Nov 3, 2023, 9:54 AM

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Compare with yours.

void welcomeScreen (void) {
    printf("\nWelcome to the Intermediate Calculator~!\n");
    void intermediateCalculator (void);
    printf("Thank you\n");
}

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I think you just copy and pasted the prototype and used it as a call to the function.

shadow marsh Nov 3, 2023, 9:54 AM

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right the void in the intermediate calcualtor is gone

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ahh yea...

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umm ok

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i have encounteredd a problem

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it all works fine

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but

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The outcome for the expression came out to be {finalOutcome}

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it says this

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instead of actually giving the final outcome

visual saffron Nov 3, 2023, 9:55 AM

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What do you enter?
(ik, probably in one of those screenshots)

shadow marsh Nov 3, 2023, 9:57 AM

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Welcome to the Intermediate Calculator~!
Welcome to the Intermediate Calculator~!
You will be providing four numbers and three operators!
The numbers must be integers and the operators must be add, subtract, multiply, divide, or remainder!
Please enter the expression below:
1 * 3 * 5 + 4
The outcome for the expression came out to be {finalOutcome}
Thank you

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this is what i get

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else {
if (operator_two == '+'){
finalOutcome = firstSecondOutcome + thirdFourthOutcome;
}
else if (operator_two == '-'){
finalOutcome = firstSecondOutcome - thirdFourthOutcome;
}
else if (operator_two == '*'){
finalOutcome = firstSecondOutcome * thirdFourthOutcome;
}
else if (operator_two == '/'){
finalOutcome = firstSecondOutcome / thirdFourthOutcome;
}
else {
finalOutcome = firstSecondOutcome % thirdFourthOutcome;
}
}
printf("The outcome for the expression came out to be {finalOutcome}\n");
}

visual saffron Nov 3, 2023, 9:59 AM

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printf("The outcome for the expression came out to be %d\n", finalOutcome);

stuck sandalBOT Nov 3, 2023, 10:04 AM

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@shadow marsh Has your question been resolved? If so, type !solved :)

visual saffron Nov 3, 2023, 10:19 AM

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@shadow marsh
From the assignment:

If operator_one is *, /, or %

You are using && which is AND.
You want || for OR.

And also:

If firstOperatorFlag is 2 and secondOperatorFlag is 2

You are using , which is not AND.
You want && here.

(neither emphasis mine)

visual saffron Nov 3, 2023, 11:03 AM

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Welcome to the Intermediate Calculator~!
Welcome to the Intermediate Calculator~!
You will be providing four numbers and three operators!
The numbers must be integers and the operators must be add, subtract, multiply, divide, or remainder!
Please enter the expression below: 
1 * 3 * 5 + 4
firstSecondOutcome = 1 * 3 = 3
firstSecondThirdOutcome = 3 * 5 = 15
finalOutcome[1] = 15 + 4 = 19
The outcome for the expression came out to be 19
Thank you

And

Welcome to the Intermediate Calculator~!
Welcome to the Intermediate Calculator~!
You will be providing four numbers and three operators!
The numbers must be integers and the operators must be add, subtract, multiply, divide, or remainder!
Please enter the expression below: 
4 + 5 * 6 / 10
secondThirdOutcome = 5 * 6 = 30
secondThirdFourthOutcome = 30 / 10 = 3
finalOutcome[2] = 4 + 3 = 7
The outcome for the expression came out to be 7
Thank you

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You were very close.
Just those two bugs I mentioned.

shadow marsh Nov 3, 2023, 12:32 PM

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oh, ok

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ok wait

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so the code i have right now is

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📎 message.txt

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this is the code I have

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but it doesn't work

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it says there is an error

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@visual saffron

cerulean raptor Nov 3, 2023, 1:06 PM

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What’s the error message

shadow marsh Nov 3, 2023, 1:10 PM

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Calculator.c:179:48: error: expression is not assignable
if (firstOperatorFlag = 2&& secondOperatorFlag = 2){
~~~~~~~~~~~~~~~~~~~~~~ ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
2 errors generated.

dawn brook Nov 3, 2023, 1:47 PM

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shadow marsh Calculator.c:179:48: error: expression is not assignable if (firstOperatorFlag =...

to check for equality you use ==

shadow marsh Nov 3, 2023, 2:19 PM

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ok

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well

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there seems to be a problem with my middle code

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Welcome to the Intermediate Calculator~!
You will be providing four numbers and three operators!
The numbers must be integers and the operators must be add, subtract, multiply, divide, or remainder!
Please enter the expression below:
3 * 4 + 5 * 5
The outcome for the expression came out to be -1
Thank you

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i'm pretty sure 3 4 + 55

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is not -1

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what is the problem here?

stuck sandalBOT Nov 3, 2023, 2:25 PM

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@shadow marsh Has your question been resolved? If so, type !solved :)

shadow marsh Nov 3, 2023, 2:25 PM

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no

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📎 message.txt

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now this is the function I have

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but something is wrong

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the finaloutcome does not come out right

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there's seomthign wrong with multiplication I thin

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Yea i tested everything

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and the only thing that doesn't work is related to multiplication

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!solved

#Functions, Scan, and Conditionals project