shithub: jbig2

Info  •  Files  •  Log  •  Branches

Fix for shift right 32 bits of unsigned int being treated as shift right 0.


git-svn-id: http://svn.ghostscript.com/jbig2dec/trunk@425 ded80894-8fb9-0310-811b-c03f3676ab4d

--- a/jbig2_huffman.c

+++ b/jbig2_huffman.c

@@ -148,7 +148,8 @@

   }

   hs->this_word = ws->get_next_word (ws, hs->offset);

   hs->next_word = ws->get_next_word (ws, hs->offset + 4);

-  hs->this_word = (hs->this_word << hs->offset_bits) |

+  if (hs->offset_bits > 0)

+      hs->this_word = (hs->this_word << hs->offset_bits) |

 	(hs->next_word >> (32 - hs->offset_bits));

 }