> I was kind of surprised about the fact that there was no warning about the missing return from main(). Normally, I'd expect the compiler to complain that a su

> I was kind of surprised about the fact that there was no warning about the missing return from main(). Normally, I'd expect the compiler to complain that a supposed int returning function does not return anything, because that would normally be undefined behaviour. If main() returns without a return statement, it is defined to return 0 by the specification. (§5.1.2.2.3 of http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2596.pdf http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2596.pdf, but this hasn't changed in quite some time).