It's a simple question. I've got a function that return a hash or undef if no value is found.

my %resp = my_func();

if(defined %resp)
{
  #do something like print $resp{foo}; print{bar};
}

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If the function return undef, I've got the warning "Odd number of elements in hash assignment".

That's makes sense, since the hash got only one value (undef). But I need to check if the hash has values, or the application will crash if I just assum there are values and try to use it...

In reply to return a hash or undef by odrevet

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