bitpack.c odditiy

Nils Pipenbrinck <[email protected]>
Newsgroups gmane.comp.multimedia.ogg.theora.devel
Message-ID <[email protected]> 
While browsing the code I came across line 83 bitpack.c:

  *_ret=((ret&0xFFFFFFFFUL)>>(m>>1))>>(m+1>>1);

Is there any reason why this is so convoluted? Maybe endianess or 64 bit 
issues? If I'm not mistaken it does exactly the the same as:

  *_ret = ret >> m;

Cheers,
  Nils
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