4-bit type

[Patrick Dahiroc]

here's my problem:  i need to read a binary file 4-bits at time.

is it possible to create a new type that is 4-bits wide?  if so how do 
i go about it

thanks
pd 

-- 


"As a general rule, if you have trouble 
 with the binary system, then probably it 
 is because you do not really understand 
 the decimal system ..."
                R.W. Hamming