Allow for really big keys in Tie::SubstrHash

private-msgid: <199701282014.VAA12645@selters.uio.no>

diff --git a/lib/Tie/SubstrHash.pm b/lib/Tie/SubstrHash.pm
index 825f30571469a6bcd9143122daa392e46511a823..44c2140c7beb2faa7a90f9712f7089b70df902f7 100644 (file)
--- a/lib/Tie/SubstrHash.pm
+++ b/lib/Tie/SubstrHash.pm
@@ -144,13 +144,17 @@ sub hashkey {
     $hash = 2;
     for (unpack('C*', $key)) {
        $hash = $hash * 33 + $_;
+       &_hashwrap if $hash >= 1e13;
     }
-    $hash = $hash - int($hash / $tsize) * $tsize
-       if $hash >= $tsize;
+    &_hashwrap if $hash >= $tsize;
     $hash = 1 unless $hash;
     $hashbase = $hash;
 }
 
+sub _hashwrap {
+    $hash -= int($hash / $tsize) * $tsize;
+}
+
 sub rehash {
     $hash += $hashbase;
     $hash -= $tsize if $hash >= $tsize;