C++ void return type of main()

Question

Some C++ compilers allow the main function to have return type void. But doesn\'t the Operating System require int type value returned to specify

Answer 1

Depending on the compiler, you may be able to use a void main function, however the proper way (that a truly standard compliant compiler should follow) is to return int with 0 being a nice & clean exit and anything else indicating that your program has done something wrong.