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############################################################################
#
# File: unsigned.icn
#
# Subject: Procedure to put bits unsigned integer
#
# Author: Robert J. Alexander
#
# Date: April 2, 1990
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# unsigned() -- Puts raw bits of characters of string s into an
# integer. The value is taken as unsigned.
#
# If large integers are supported, this routine will work for integers
# of arbitrary size.
#
# If large integers are not supported, the following are true:
#
# If the size of s is the same as or greater than the size of an
# integer in the Icon implementation, the result will be negative or
# positive depending on the value of the integer's sign bit.
#
# If the size of s is less than the size of an integer, the bytes are
# put into the low order part of the integer, with the remaining high
# order bytes filled with zero. If the string is too large, the most
# significant bytes will be lost.
#
# This procedure is normally used for processing of binary data read
# from a file.
#
procedure unsigned(s)
local i
i := 0
every i := ior(ord(!s),ishift(i,8))
return i
end
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