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-rw-r--r--MDK/Common/DataStructure.pm8
1 files changed, 4 insertions, 4 deletions
diff --git a/MDK/Common/DataStructure.pm b/MDK/Common/DataStructure.pm
index 26c8b0f..79e4aa0 100644
--- a/MDK/Common/DataStructure.pm
+++ b/MDK/Common/DataStructure.pm
@@ -117,10 +117,10 @@ use MDK::Common::Math;
use MDK::Common::Func;
-use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK);
-@ISA = qw(Exporter);
-@EXPORT_OK = qw(sort_numbers ikeys add2hash add2hash_ put_in_hash member invbool listlength deref deref_array is_empty_array_ref is_empty_hash_ref uniq uniq_ difference2 intersection next_val_in_array group_by2 list2kv);
-%EXPORT_TAGS = (all => [ @EXPORT_OK ]);
+use Exporter;
+our @ISA = qw(Exporter);
+our @EXPORT_OK = qw(sort_numbers ikeys add2hash add2hash_ put_in_hash member invbool listlength deref deref_array is_empty_array_ref is_empty_hash_ref uniq uniq_ difference2 intersection next_val_in_array group_by2 list2kv);
+our %EXPORT_TAGS = (all => [ @EXPORT_OK ]);
sub sort_numbers { sort { $a <=> $b } @_ }