fix divide by zero error

[spider.git] / perl / Julian.pm

diff --git a/perl/Julian.pm b/perl/Julian.pm
index 0bd1f168f0c84c150357e3f15f1f5f6595b961d2..5351aa278c98bec968dabe03e20339284c8321f8 100644 (file)
--- a/perl/Julian.pm
+++ b/perl/Julian.pm
@@ -13,7 +13,7 @@ package Julian;
 
 use vars qw($VERSION $BRANCH @days @ldays @month);
 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
-$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ ) || 0;
+$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
 $main::build += $VERSION;
 $main::branch += $BRANCH;
 
@@ -79,9 +79,9 @@ sub sub($$)
        my $diny = _isleap($self->[0]) ? 366 : 365;
        $self->[1] -= $amount;
        while ($self->[1] <= 0) {
-               $self->[1] += $diny;
                $self->[0] -= 1;
                $diny = _isleap($self->[0]) ? 366 : 365;
+               $self->[1] += $diny;
        }
        return $self;
 }