Difference between void main and int main in C/C++? [duplicate]

The difference is one is the correct way to define main, and the other is not.

And yes, it does matter. Either

int main(int argc, char** argv)

int main()

are the proper definition of your main per the C++ spec.

void main(int argc, char** argv)

is not and was, IIRC, a perversity that came with older Microsoft's C++ compilers.

c++ c function standards main

Bjarne Stroustrup made this quite clear:

The definition void main() is not and never has been C++, nor has it even been C.

c++ c function standards main

You should use int main. Both the C and C++ standards specify that main should return a value.

CodeHunter