void problems

Projects Programming
1

Hi,
I'm beginner in Arduino and after making a program for my school project I tried to make it look a little bit more in order.
So I tried to create different functions by typing :

void "name of funcion"(){
...
}

and to use this function in my program by typing :

name of function();

and I'm getting this error of compilation :

invalid operands of types 'void()' and 'void' to binary 'operator-'

I don't know what am I supposed to put between () or is at another thing ?

PS: I'm not english, that's why it can look a little bit strangely write :sweat_smile:

final.ino (3.34 KB)

2

Many of your function names are invalid. Use longer names not single characters and don't put maths commands like - (minus) in the middle of them.

Steve

3

You can't use the '-' in the name of a function. Function names can only be letters and numbers (and I believe have to start with a letter). They can also have the underscore '_'

4

Hyphens are not legal in function or variable names. The compiler thinks you're trying to perform a subtraction.

Variable and function names are only allowed to have letters, numbers, and the underscore (_) in them, and must not have a number as their first character.

5

Thanks to all for reply, I was not thinking to that when I write the name :confused: