return type is not working for a function about mojo HOT 2 CLOSED

It's not a bug. You have to specify the return type in sum_value:

fn sum_values(*values: Int) -> Int:  # <<<
    var s = 0
    for value in values:
        s += value
   return s

fn main():
    var result = sum_values(3, 5)
    print(result)

print works in the other example because fn f(...): ... is the same as fn f(...) -> None: ....

from mojo.

thank you very much!

from mojo.