[Baypiggies] mmap question

K. Richard Pixley rich at noir.com
Sat Dec 18 06:54:00 CET 2010

Ok, I'm stumped.

I have two files.  They are the same size and I've mmaped them both into 
xmap and ymap.  I'd like to compare their contents but without copying 
them into yet another chunk of memory before I do so.  There should be a 
way to bitblt these things.

The only things I can think to do involve forcing a string copy first.

    xmap[:] == ymap[:]
    bytearray(xmap) == bytearray(ymap)
    xmap.read() == ymap.read()

Can anyone think of a way to do this without first copying them to strings?


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