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Contents
# Library for hardware-related floating point operations.
#--
# Copyright 2006 Suraj N. Kurapati
# See the file named LICENSE for details.
class String
# Converts this string into a floating point number
# using the given radix. The default radix is 10.
def to_f aRadix = 10
whole, frac = split('.', 2)
whole = whole.to_i(aRadix).to_f
if frac
f = 0.0
frac.length.times do |i|
power = i.next
weight = aRadix ** -power
digit = frac[i, 1].to_i(aRadix)
f += digit * weight
end
f = -f if self =~ /^-/
whole += f
end
whole
end
end
class Float
# Returns the mantissa of this floating point number
def mantissa
f = abs
f - f.floor
end
end
Version data entries
6 entries across 6 versions & 1 rubygems