=head1 DESCRIPTION
-First of all, have you tried using the B<-w> switch?
+First of all, have you tried using L<C<use strict;>|strict> and
+L<C<use warnings;>|warnings>?
If you're new to the Perl debugger, you may prefer to read
See L<Dumpvalue> if you'd like to do this yourself.
The output format is governed by multiple options described under
-L<"Configurable Options">.
+L</"Configurable Options">.
If the C<maxdepth> is included, it must be a numeral I<N>; the value is
dumped only I<N> levels deep, as if the C<dumpDepth> option had been
1 only where it is safe to do so--that is, mostly for Boolean
options. It is always better to assign a specific value using C<=>.
The C<option> can be abbreviated, but for clarity probably should
-not be. Several options can be set together. See L<"Configurable Options">
+not be. Several options can be set together. See L</"Configurable Options">
for a list of these.
=item < ?
Here's an example of what a stack backtrace via C<T> command might
look like:
- $ = main::infested called from file 'Ambulation.pm' line 10
- @ = Ambulation::legs(1, 2, 3, 4) called from file 'camel_flea' line 7
- $ = main::pests('bactrian', 4) called from file 'camel_flea' line 4
+ $ = main::infested called from file 'Ambulation.pm' line 10
+ @ = Ambulation::legs(1, 2, 3, 4) called from file 'camel_flea'
+ line 7
+ $ = main::pests('bactrian', 4) called from file 'camel_flea'
+ line 4
The left-hand character up there indicates the context in which the
function was called, with C<$> and C<@> meaning scalar or list
This shows the sorts of output the C<l> command can produce:
- DB<<13>> l
- 101: @i{@i} = ();
- 102:b @isa{@i,$pack} = ()
- 103 if(exists $i{$prevpack} || exists $isa{$pack});
- 104 }
- 105
- 106 next
- 107==> if(exists $isa{$pack});
- 108
- 109:a if ($extra-- > 0) {
- 110: %isa = ($pack,1);
+ DB<<13>> l
+ 101: @i{@i} = ();
+ 102:b @isa{@i,$pack} = ()
+ 103 if(exists $i{$prevpack} || exists $isa{$pack});
+ 104 }
+ 105
+ 106 next
+ 107==> if(exists $isa{$pack});
+ 108
+ 109:a if ($extra-- > 0) {
+ 110: %isa = ($pack,1);
Breakable lines are marked with C<:>. Lines with breakpoints are
marked by C<b> and those with actions by C<a>. The line that's
=head1 SEE ALSO
-You do have C<use warnings> enabled, don't you?
+You do have C<use strict> and C<use warnings> enabled, don't you?
L<perldebtut>,
L<perldebguts>,