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Is 'unsigned' a datatype by itself?

Hi,
I have seen that some of the example programs availbale in this site define/declare variables as unsigned.

For eg: unsigned voltage; //A-to-D example program

What type would voltage in the above case assume? If it just holds a numeric value between 0 and 255 can I directly say
float f = voltage/4.5;
or do I need to do any casting on this statement.
Thanks in advance

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  • K&R is widely regarded as being a tutorial.
    H&S is widely regarded as being the reference.


    That's funny. I always thought K&R was the ultimate reference (aside from the C standard itself), and everything else was aimed at helping folks come up to speed on C till they could understand (and appreciate) K&R. I've often heard K&R referred to as "The C Bible".

    That being said, I'm not familiar with H&S. Can you provide a link to it?

  • "That's funny. I always thought ..."

    The folks that write the standard, write the compilers, write the libraries, write the books, etc. generally agree with the K&R and H&S attributes as I have stated them. They're the folks who provided this general consensus in the first place. You can read about their feelings in comp.lang.c and comp.std.c.

    Anyhow, your link is: http://careferencemanual.com/