I saw pack being used somewhere and I had no idea what it did. So I pulled out my trusty copy of the Camel book and went to read up on it. It was well documented but I couldn't understand any of it.

Eg: 

c   A signed char value.
C   An unsigned char value.

[download]

Is there a good explanation somewhere of what all of them mean?
Eg: I have no idea what a signed char is.
From what I have tried to find out they seem to come from C. Is this true?

In reply to Explanation of pack by razor8

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