What's wrong with this C code?

sirlemonhead · 19 Oct 2009 at 01:21

void main goes against the standard, which says it should be int main, and return 0 on success (though you can leave the return out as return 0 is assumed by the compiler)

Energize · 19 Oct 2009 at 01:21

The uni seem to want it according to the intranet

Returning 0 indicates success. A program should return 0 when it has finished successfully. Note: the 'main' function in C is declared as int main not void main as it is in Java, therefore an integer value should always be returned upon completion of the program.

Rroff · 19 Oct 2009 at 01:27

Intriguing - I was always taught that void main was the "proper" way to do it...

Auraomega · 19 Oct 2009 at 03:10

Some of the compilers I've used over the years give warnings or error messages when using void as main. I always thought it was good practise to return some value anyway, I normally write back end programs so its always handy to give the front end either the all ok (return 0) or an error message (return CODER_MADE_A_BOTCH)

BullBoyShoes · 19 Oct 2009 at 10:09

on an embedded system, void main() is the correct way, as main never returns as it has no OS to return to