in reply to Debugging "Use of uninitialized value" warnings.
This is not currently possible. However, the development version of perl (from 5.9.2 onwards) attempts to determine which variable was undefined; it can't always, as this example shows:
Dave.use strict; use warnings; my %foo; my %bar; $bar{'one'} = 1; my ($x,$y); $x = "$bar{'one'} $foo{'one'}"; $x = "$y $foo{'one'}"; $x = "xxx $foo{'one'}"; __END__ Use of uninitialized value in concatenation (.) or string at /tmp/p li +ne 10. Use of uninitialized value $y in concatenation (.) or string at /tmp/p + line 11. Use of uninitialized value in concatenation (.) or string at /tmp/p li +ne 11. Use of uninitialized value $foo{"one"} in concatenation (.) or string +at /tmp/p line 12.
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