return and return 0

[hellcoder]

what is the difference between return and return0 ?

void merge_pass(float a[],int m ,int n){
int h;
if(m!=n)
{
  h=m+n/2;
 merge_pass(a,m,h);
 merge_pass(a,h+1,n);
 merge_sort(a,m,h,n);
}
return;
}

[giblit]

return doesnt return anything and return 0 returns 0.
Though this is a void function so it would not return anything anyways so a return statement is pointless.

the void is the return type it can be anything really int , string , vector , blah blah blah...

so say you have something like this

int ret_integer()
{
    return( 10 );
}

it is returning 10.
so if you did something like

1 2 3 4 5 6 7

#include <iostream> int main() { std::cout << ret_integer() << std::endl; } //you would get -> 10

10

[Venomcxx]

You won't understand the difference unless you are using multiple functions.