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Postings from March 2000
Tom Christiansen writes: > >This is a bug report for perl from hermit@komodo.bayview.com, > >generated with the help of perlbug 1.28 running under perl v5.6.0. > > >----------------------------------------------------------------- > >The warning message that appears when you use an uninitialized variable > >in string interpolation (double quotes) is wrong. It says "Use of > >uninitialized value in concatenation (.)" when in fact there is no > >concatenation (.) operator on that line. Instead, there is double-quoted > >string interpolation. The warning message is misleading, as novice > >users might go looking for a concatenation operator (a . between two > >scalar values) when in fact the problem is with something different. > > That is, however, what's happening: > > % perl -MO=Deparse,-q -e '@scalar = @array = (1..10); print "this $scalar and that @array\n"' > @scalar = (@array = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)); > print 'this ' . $scalar . ' and that ' . join($", @array) . "\n"; I assumed as much, but I still don't think it's reasonable to expect the user to know that. --Bill. -- William R Ward hermit@bayview.com http://www.bayview.com/~hermit/ ----------------------------------------------------------------------------- The secret of being creative is making something that's not very new but just a little bit different in the right direction - Marvin Minsky