Operators #2
Raku++ 5.0.0-g312cde8e prints something different from Rakudo 2026.08
Rakudo 2026.08 runs this program cleanly; the lines marked ≠ below are where the answers part. A difference is a lead, not a verdict: sometimes both are valid Raku, and sometimes Rakudo is the one that is wrong. This difference is preserved as a Rakumap finding ↗
The program
The first lines compute $value. The last four lines are the same in every program: they print what kind of thing $value is, how it looks as code, as a string, and as true or false.
my $needle = 8;
my $value = ($needle == any(1, 2, 3, 5, 8, 13), $needle > all(0, -1));
sub safe-str($v) {
my $s = try $v.Str;
$s.defined ?? $s !! '<undefined>'
}
say "TYPE\t" ~ $value.^name;
say "RAKU\t" ~ $value.raku;
say "STR\t" ~ safe-str($value);
say "BOOL\t" ~ $value.Bool;
Run executes the program in your browser, with the Raku++ build this site ships. Edit it and try variations.
What each compiler printed
| Rakudo 2026.08 | Raku++ 5.0.0-g312cde8e | |
|---|---|---|
| Type .^name | List | List |
| Code form .raku | $(any(Bool::False, Bool::False, Bool::False, Bool::False, Bool::True, Bool::False), all(Bool::True, Bool::True)) | $(any(Bool::False, Bool::False, Bool::False, Bool::False, Bool::True, Bool::False), all(Bool::True, Bool::True)) |
| String .Str | <undefined> | any all ≠ |
| True or false .Bool | True | True |
operators-v1 · seed 41 · recorded 2026-09-29 with Rakudo 2026.08 and Raku++ 5.0.0-g312cde8e · Source on GitHub ↗