Class: Struct::Float

Inherits:

Object

• Object
• Struct::Float

Defined in:

lib/struct_float.rb

Overview

Struct class for the fields that form a Float according to the IEEE-754 standard: sign, biased exponent, fraction.

Instance Method Summary

• #inspect ⇒ Object

  Overrides Object#inspect.

• #to_f ⇒ Object

  Assemble a float number from a Float::Struct.

Instance Method Details

#inspect ⇒ Object

Overrides Object#inspect.

# File 'lib/struct_float.rb', line 28

def inspect
  self.class.name + to_a.inspect
end

#to_f ⇒ Object

Assemble a float number from a Float::Struct. It is the inverse of Float#to_struct.

Struct::Float[1,1024,0].to_f
                         # => 2.0

# File 'lib/struct_float.rb', line 23

def to_f
  ["%b%011b%052b" % [sign < 0 ? 1 : 0, biased_exp , fraction]].pack("B*").unpack("G").first
end