blob: 203950110ae551eabae32eb4aa7a2b472a67ce75 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
# Test: function named arguments, explicit ret, and multiple return values
# zero-arg function with explicit return
fun answer() {
ret 42;
}
assert 42 == say answer();
# single-arg function — factorial with a while loop and ret
fun factorial(n) {
my result = 1;
while n > 1 {
result = result * n;
decr n;
}
ret result;
}
assert 120 == say factorial(5);
# two-arg function
fun add(a, b) {
ret a + b;
}
assert 8 == say add(3, 5);
# conditional return inside if
fun absval(n) {
if n < 0 { ret neg n; }
ret n;
}
assert 5 == say absval(5);
assert 5 == say absval(neg 5);
# multiple return values — both land on the caller's stack
fun minmax(a, b) {
if a < b { ret a, b; }
ret b, a;
}
say minmax(3, 7);
# old-style zero-arg function without parens still works
fun greet {
say "hello";
}
greet;
|
