C++Talk.NET

Antonio Parolini · Guest

What is the difference between:

main(......) {

exit(0);
}

and

main(......) {

return(0);
}

Thank you!

Andre Kostur · Guest

"Anant" <anant.kumar (AT) gmail (DOT) com> wrote in news:1166510526.110605.230050@
73g2000cwn.googlegroups.com:

Anant · Guest

If you are calling some function recursively then return 0 will just go
to one level down on the stack, while exit 0 will terminate this
thread.

int f(int i)
{
if (i == 3)
{
return 0;;
}
f(i+1);
cout <<" the value is "<<i<<endl;
}
int main(void)
{
f(0);
return 0;
}

OUTPUT >> the value is 2
the value is 1
the value is 0

while

int f(int i)
{
if (i == 3)
{
exit (0);
}
f(i+1);
cout <<" the value is "<<i<<endl;
}
int main(void)
{
f(0);
return 0;
}

will just return with out printing anything. Even if we will create one
object inside this function "f", it will not call destructor of this
object.While in the first program it will call the destructor of of the
object.

Antonio Parolini wrote: