Question

Is the loop() function a replacement of the main() function in the Arduino Programming Environment?

(a) No, it is a replacement for the constructor

(b) Yes, it is a replacement

(c) Yes, but only for certain Arduino Boards

(d) No, it is not a replacement

The question was posed to me by my college director while I was bunking the class.

I need to ask this question from The loop() Function in section Arduino Programming of Arduino

Answer 1

Right answer is (d) No, it is not a replacement

Easiest explanation: The Arduino programming language is a subset of the C++ programming language, so the main function is also present here. However during the active development of any project using the Arduino Environment we do not encounter the main function()’s use since it is prebuilt for that purpose to make the development simple, so that instead of worrying about linking the correct system functions to the main function during the development cycle of the project, the programmer only needs to worry about the actual working of his/her project.