Is there any direct way to test if a variable is threads::shared ? I can't find anything in the threads::shared docs, nor in perlthrtut, nor in a Google search, nor in a search here. Currently, my only solution is this bit of code: 
sub shared_test {
    my $var_ref = shift;
    return undef unless ref $var_ref;
    my $safety : shared;

    eval {
        $safety = $var_ref;
    };
    return !$@;
}

my $shared : shared = 1;
my $private = 2;

shared_test(\$shared);
shared_test(\$private);

[download]
...which is a pretty expensive operation for something which should be a simple test. Any help much appreciated.

In reply to Testing if variable is threads::shared ? by renodino

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