perlvar lists @- and @+, but you still need a while loop to capture them:
#!/usr/local/bin/perl
use strict;
use Data::Dumper;
my $str = 'abacadabra';
my @matches;
push @matches, [ map { substr $str, $-[$_], $+[$_]-$-[$_] } 1..$#+ ]
while $str =~ /([ac])([bd])/g;
print Dumper \@matches;
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