Challenge for you...

[mnrvovrfc]

Remove this line. It is not needed in QB64.

Code: (Select All)

Declare Function fakultaet(n As Integer) As _Integer64

Then change the function heading to:

Code: (Select All)

Function fakultaet&& (n As Integer)

In QB64 must use the type sigils to define the return type of a function.

In Julia I guess wrap "n" and "n-1" as "big(n)" and "big(n-1)". I had to use "big()" as suggested in the manual to get factorials larger than 23 or so, that didn't wrap around signed 64-bit integer range.