What are error codes (*^ω^*)？

Question

What are they?
What do they do?

What are some basic ones?
Ty

Answer 1

Error codes are when there is an error, so the compiler returns a certain code for the error. Here are some:
- missing ; at end of statement
- object is undefined
- parameter of function is not supplied
and so on.... look at the error codes in C with this: https://code.sololearn.com/cZ31qFMu6x5r/?ref=app

Answer 2

Missing ;

Answer 3

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