Return in function main in Sololearn C course

Question

In course of C some users questions about return different of 0 or without return don't cause effect, don't show error.

This is of Sololearn platform for coding?

I don't test in IDE's for computer recently, but i think that result in error.

Anyone have this answer?

Thanks for attention. Excuse my english.

Below an example that a create for study this problem:
https://code.sololearn.com/cmr113qk94Lh/?ref=app

Answer 1

Hello Walberto, this is a common question that had been discussed before. Please try to use the Search feature before posting a new question. What I have learned from previous responds to the subject is, compiler inserts a `return 0;` automatically if we didn't explicitly set what to return, but compiler only does this for main function - having the main return type as int.