in reply to Evaluate arbitrary boolean expressions

I can then combine the results from multiple calls to the aforementioned sub to create a more complex boolean expression such as (T && F) || (F && F) etc.

If your sub is called foo() then it's simply

my $bool = (foo() && !foo()) || (!foo() && !foo());

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Re^2: Evaluate arbitrary boolean expressions
by gauss76 (Scribe) on Mar 13, 2018 at 10:57 UTC

    Yes, sure, but my question is how can I evaluate your variable $bool to true or false?

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      gauss76:

      if ($bool) {
    print "It's true\n";
}
else {
    print "It's false\n";
}

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      ...roboticus

      When your only tool is a hammer, all problems look like your thumb.

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[d/l]

        OK, that's great but how can I contruct the variable $bool on the fly?

        In general I will have a function that will return values 0 and 1. I can then combine these with operators || and &&. However if I write all this to a string variable $bool the test does not work properly!

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