rust/src/test/run-pass/fact.rs
2011-07-27 15:54:33 +02:00

28 lines
344 B
Rust

// -*- rust -*-
fn f(x: int) -> int {
// log "in f:";
log x;
if x == 1 {
// log "bottoming out";
ret 1;
} else {
// log "recurring";
let y: int = x * f(x - 1);
// log "returned";
log y;
ret y;
}
}
fn main() {
assert (f(5) == 120);
// log "all done";
}