The compiler overlooks varible declaration

Projects Programming
1

(deleted)

2

Is that just a rant or can we help you figure it out? Post the code and errors and maybe we can point you in the right direction.

3

I expect you're doing something wrong but I'm not a mind reader. Show us some code and the associated error messages. Or if you don't want to do that then I hope your rant made you feel better.

Steve

4

Twice recently I had that exact same symptom, and had accidentally stuck my globals in setup().

5

(deleted)

sketch_may15a.ino (5.88 KB)

6

First issue is a typo. You declared a variable called bigclac_5 which I doubt was your intention.

Second is a scoping error - trying to use usecount outside of where it was declared.

Stopped looking after that.

7

wildbill:
First issue is a typo. You declared a variable called bigclac_5 which I doubt was your intention.

Second is a scoping error - trying to use usecount outside of where it was declared.

Stopped looking after that.

I stopped looking after the typo.

I'm surprised it's taken OP since may 15th :wink:

8

(deleted)

9

You are using both bigcalc_5 and bigclac_5 but only declared one of them. Look closely at the spelling - which is it?

10

Try compile this, which is what you're doing, with the declare in a {}

void setup()
{
  
}

void loop()
{
  {
    int usecount;
  }
  usecount=10;
}

exit status 1
'usecount' was not declared in this scope
11

(deleted)

12

Here is a tutorial about scope that may clear some things up.

13

Treat it as a learning moment - many people new to programming have blamed the compiler for their issues and while it almost certainly has bugs, you're very very unlikely to have found one - just think about how many other folks have used it successfully.

14

(deleted)

15

edit:Is there a mark as solved function somewhere?

You can edit the title of your post to add Solved.

16

Leonhard_Saam:
Sry that I was so angry, but I used up like 2 hours on it straigt and my teacher also looked very carefully, like me.

Oh, Booo Hooo. Wait until you’ve spent a week of 12-hour days trying to find an elusive code bug. And, it’s your job. And, there’s a looming project deadline. And, the boss is asking for updates every hour.

17

OP should post his code inline with CODE TAGS
I can’t see his code, and won’t try to help until he does...
I’m reading on a tablet, and can’t see his ino file.
Maybe a lesson to be learned here...!

18

Leonhard_Saam:
Sry that I was so angry, but I used up like 2 hours on it straigt and my teacher also looked very carefully, like me. I think I'm gonna mark this one as solved
edit:Is there a mark as solved function somewhere?

You're not the first and you won't be the last. It's termed "A character forming experience".

This is a quote from the late Sir Maurice Wilkes, one of the founders of computing at Cambridge University:-

By June 1949 people had begun to realize that it was not so easy to get programs right as at one time appeared. I well remember when this realization first came on me with full force.
The EDSAC was on the top floor of the building and the tape-punching and editing equipment one floor below. [...] It was on one of my journeys between the EDSAC room and the punching equipment that "hesitating at the angles of stairs" the realization came over me with full force that a good part of the remainder of my life was going to be spent in finding errors in my own programs.

Ian

19

If de-bugging is the act of taking errors out of programs, programming must be the act of putting the errors in...

20

lastchancename:
I’m reading on a tablet, and can’t see his ino file.
Maybe a lesson to be learned here...!

Indeed: move away from tablets?