# Copyright (c) 2014, 2015 Oracle and/or its affiliates. All rights reserved. This
# code is released under a tri EPL/GPL/LGPL license. You can use it,
# redistribute it and/or modify it under the terms of the:
# 
# Eclipse Public License version 1.0
# GNU General Public License version 2
# GNU Lesser General Public License version 2.1

# Copyright (c) 2007-2014, Evan Phoenix and contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
# * Neither the name of Rubinius nor the names of its contributors
#   may be used to endorse or promote products derived from this software
#   without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

class Float

  NAN        = 0.0 / 0.0
  INFINITY   = 1.0 / 0.0
  EPSILON    = 2.2204460492503131e-16
  RADIX      = 2
  ROUNDS     = 1
  MIN        = 4.9E-324
  MAX        = 1.7976931348623157e+308
  MIN_EXP    = -1021
  MAX_EXP    = 1024
  MIN_10_EXP = -307
  MAX_10_EXP = 308
  DIG        = 15
  MANT_DIG   = 53

  # for Float ** Rational we would normally do Rational.convert(a) ** b, but
  # this ends up being recursive using Rubinius' code, so we use this helper
  # instead.

  def pow_rational(rational)
    self ** rational.to_f
  end

  private :pow_rational

  def equal_fallback(other)
    # Fallback from Rubinius' Float#==, after the primitive call

    begin
      b, a = math_coerce(other)
      return a == b
    rescue TypeError
      return other == self
    end
  end

  private :equal_fallback

end
