OK, I admit it... pack and unpack confuse me... each time I think I have them figured out, I realize I really don't. Are there any resources (other then perldoc -f unpack) with some more advanced examples?

The particular problem I'm having at the moment is unpacking a C struct like this: 

  struct {
    unsigned long var1:16, var2:16;
    unsigned long var3:24, var4:8;
    unsigned long var5:6,  var6:26;
  };

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The first 2, I got (I think), the second 2 I THOUGHT I got, but was wrong.. the last 2... well, frankly I'm just not too sure. Here's what I tried: 

  $fh->read($buf, 12);
  @var = unpack("s s C3 C b6 b26", $buf);

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Now, $var[0] and $var[1] end up as 2 byte shorts (as I expected), $var[2] ends up as 1 byte, not the 3 bytes I was expecting... it looks like the 2nd and 3rd bytes are put into $var[3] and $var[4]... which of course throws the rest off track.

How do I grab 3 bytes and put that into a single var, not split into 3 separate vars?

With regards to the "b6" and "b26"... well... I don't really want the value returned as binary data... I just want a 6 bit integer and a 26 bit integer respectively. How do I do that?

In reply to Unpacking struct by Anonymous Monk

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