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I'd say that unless you habitually and religiously always assign your functions to individual scalars, eg: my( $x, $y, $z ) = yourfunc();, then there is no way to do this check.

If you assign your function to:

  1. an array: my @vals =  yourFunc();
  2. or a hash: my %hash = yourFunc();
  3. or use it in a for loop: for my $x ( yourFunc() ){
  4. or to map;  ... map{ ... } yourFunc();
  5. or grep;  ... grep{ ... } yourFunc();
  6. or as an arg to any other function: someFunc( 1, 'fred', yourFunc() ); user or built-in;

then there is no way to know how many values it should return.


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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re: Checking number of values returned by BrowserUk
in thread Checking number of values returned by jfrm

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