Why calling main() is not allowed in C++

Question

C++03 3.6.1.3: The function main shall not be used (3.2) within a program. ...

I wonder why this rule exists... Is anyone awa

Answer 1

C++'s main() is a strange little function that has different syntax for exception-handling, doesn't have to return a value, even though it has to be defined as returning int, etc. I don't know whether this affects any real implementations, but I would guess that the restriction exists to give compiler writers some latitude in how they implement main().