I want my boolean functions/methods to return true (1) or nothing (not zero or undef, nothing, as in "return;") like the Perl built-ins do. If the code just uses built-ins, it's no big deal:

sub foo {
    retrun shift->{age} == shift;
}

[download]

The == op will return 1 if they're equal, nothing if they're not. But what if I'm calling someone else's code for the return value? What's the cleanest way to ensure I get that same kind of return value (1 or nothing)?

sub foo {
    return 1 if shift->{some_obj}->some_method;
    return;
}

[download]

Is there a better way of doing this?

In reply to Elegant way to return true or nothing from a subroutine? by Anonymous Monk

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