############################################################################
#
# File: bitint.icn
#
# Subject: Procedures to convert integers and bit strings
#
# Author: Ralph E. Griswold
#
# Date: May 25, 1994
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# int2bit(i) produces a string with the bit representation of i.
#
# bit2int(s) produces an integer corresponding to the bit representation i.
#
############################################################################
procedure int2bit(i)
local s, sign
if i = 0 then return 0
if i < 0 then {
sign := "-"
i := -i
}
else sign := ""
s := ""
while i > 0 do {
s := (i % 2) || s
i /:= 2
}
return sign || s
end
procedure bit2int(s)
if s[1] == "-" then return "-" || integer("2r" || s[2:0])
else return integer("2r" || s)
end
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