# BigDecimal provides arbitrary-precision floating point decimal arithmetic.
#
# ## Introduction
#
# Ruby provides built-in support for arbitrary precision integer arithmetic.
#
# For example:
#
#     42**13  #=>   1265437718438866624512
#
# BigDecimal provides similar support for very large or very accurate floating
# point numbers.
#
# Decimal arithmetic is also useful for general calculation, because it provides
# the correct answers people expect--whereas normal binary floating point
# arithmetic often introduces subtle errors because of the conversion between
# base 10 and base 2.
#
# For example, try:
#
#     sum = 0
#     10_000.times do
#       sum = sum + 0.0001
#     end
#     print sum #=> 0.9999999999999062
#
# and contrast with the output from:
#
#     require 'bigdecimal'
#
#     sum = BigDecimal("0")
#     10_000.times do
#       sum = sum + BigDecimal("0.0001")
#     end
#     print sum #=> 0.1E1
#
# Similarly:
#
#     (BigDecimal("1.2") - BigDecimal("1.0")) == BigDecimal("0.2") #=> true
#
#     (1.2 - 1.0) == 0.2 #=> false
#
# ## Special features of accurate decimal arithmetic
#
# Because BigDecimal is more accurate than normal binary floating point
# arithmetic, it requires some special values.
#
# ### Infinity
#
# BigDecimal sometimes needs to return infinity, for example if you divide a
# value by zero.
#
#     BigDecimal("1.0") / BigDecimal("0.0")  #=> Infinity
#     BigDecimal("-1.0") / BigDecimal("0.0")  #=> -Infinity
#
# You can represent infinite numbers to BigDecimal using the strings
# `'Infinity'`, `'+Infinity'` and `'-Infinity'` (case-sensitive)
#
# ### Not a Number
#
# When a computation results in an undefined value, the special value `NaN` (for
# 'not a number') is returned.
#
# Example:
#
#     BigDecimal("0.0") / BigDecimal("0.0") #=> NaN
#
# You can also create undefined values.
#
# NaN is never considered to be the same as any other value, even NaN itself:
#
#     n = BigDecimal('NaN')
#     n == 0.0 #=> false
#     n == n #=> false
#
# ### Positive and negative zero
#
# If a computation results in a value which is too small to be represented as a
# BigDecimal within the currently specified limits of precision, zero must be
# returned.
#
# If the value which is too small to be represented is negative, a BigDecimal
# value of negative zero is returned.
#
#     BigDecimal("1.0") / BigDecimal("-Infinity") #=> -0.0
#
# If the value is positive, a value of positive zero is returned.
#
#     BigDecimal("1.0") / BigDecimal("Infinity") #=> 0.0
#
# (See BigDecimal.mode for how to specify limits of precision.)
#
# Note that `-0.0` and `0.0` are considered to be the same for the purposes of
# comparison.
#
# Note also that in mathematics, there is no particular concept of negative or
# positive zero; true mathematical zero has no sign.
#
# ## bigdecimal/util
#
# When you require `bigdecimal/util`, the #to_d method will be available on
# BigDecimal and the native Integer, Float, Rational, and String classes:
#
#     require 'bigdecimal/util'
#
#     42.to_d         # => 0.42e2
#     0.5.to_d        # => 0.5e0
#     (2/3r).to_d(3)  # => 0.667e0
#     "0.5".to_d      # => 0.5e0
#
# ## License
#
# Copyright (C) 2002 by Shigeo Kobayashi <shigeo@tinyforest.gr.jp>.
#
# BigDecimal is released under the Ruby and 2-clause BSD licenses. See
# LICENSE.txt for details.
#
# Maintained by mrkn <mrkn@mrkn.jp> and ruby-core members.
#
# Documented by zzak <zachary@zacharyscott.net>, mathew <meta@pobox.com>, and
# many other contributors.
#
class BigDecimal < Numeric
  # Internal method used to provide marshalling support. See the Marshal module.
  #
  def self._load: (String) -> BigDecimal

  # The BigDecimal.double_fig class method returns the number of digits a Float
  # number is allowed to have. The result depends upon the CPU and OS in use.
  #
  def self.double_fig: () -> Integer

  def self.interpret_loosely: (string) -> BigDecimal

  # Limit the number of significant digits in newly created BigDecimal numbers to
  # the specified value. Rounding is performed as necessary, as specified by
  # BigDecimal.mode.
  #
  # A limit of 0, the default, means no upper limit.
  #
  # The limit specified by this method takes less priority over any limit
  # specified to instance methods such as ceil, floor, truncate, or round.
  #
  def self.limit: (?Integer? digits) -> Integer

  # Controls handling of arithmetic exceptions and rounding. If no value is
  # supplied, the current value is returned.
  #
  # Six values of the mode parameter control the handling of arithmetic
  # exceptions:
  #
  # BigDecimal::EXCEPTION_NaN BigDecimal::EXCEPTION_INFINITY
  # BigDecimal::EXCEPTION_UNDERFLOW BigDecimal::EXCEPTION_OVERFLOW
  # BigDecimal::EXCEPTION_ZERODIVIDE BigDecimal::EXCEPTION_ALL
  #
  # For each mode parameter above, if the value set is false, computation
  # continues after an arithmetic exception of the appropriate type. When
  # computation continues, results are as follows:
  #
  # EXCEPTION_NaN
  # :   NaN
  # EXCEPTION_INFINITY
  # :   +Infinity or -Infinity
  # EXCEPTION_UNDERFLOW
  # :   0
  # EXCEPTION_OVERFLOW
  # :   +Infinity or -Infinity
  # EXCEPTION_ZERODIVIDE
  # :   +Infinity or -Infinity
  #
  #
  # One value of the mode parameter controls the rounding of numeric values:
  # BigDecimal::ROUND_MODE. The values it can take are:
  #
  # ROUND_UP, :up
  # :   round away from zero
  # ROUND_DOWN, :down, :truncate
  # :   round towards zero (truncate)
  # ROUND_HALF_UP, :half_up, :default
  # :   round towards the nearest neighbor, unless both neighbors are equidistant,
  #     in which case round away from zero. (default)
  # ROUND_HALF_DOWN, :half_down
  # :   round towards the nearest neighbor, unless both neighbors are equidistant,
  #     in which case round towards zero.
  # ROUND_HALF_EVEN, :half_even, :banker
  # :   round towards the nearest neighbor, unless both neighbors are equidistant,
  #     in which case round towards the even neighbor (Banker's rounding)
  # ROUND_CEILING, :ceiling, :ceil
  # :   round towards positive infinity (ceil)
  # ROUND_FLOOR, :floor
  # :   round towards negative infinity (floor)
  #
  def self.mode: (Integer mode, ?Integer? value) -> Integer?

  # Execute the provided block, but preserve the exception mode
  #
  #     BigDecimal.save_exception_mode do
  #       BigDecimal.mode(BigDecimal::EXCEPTION_OVERFLOW, false)
  #       BigDecimal.mode(BigDecimal::EXCEPTION_NaN, false)
  #
  #       BigDecimal(BigDecimal('Infinity'))
  #       BigDecimal(BigDecimal('-Infinity'))
  #       BigDecimal(BigDecimal('NaN'))
  #     end
  #
  # For use with the BigDecimal::EXCEPTION_*
  #
  # See BigDecimal.mode
  #
  def self.save_exception_mode: () { (?nil) -> void } -> void

  # Execute the provided block, but preserve the precision limit
  #
  #     BigDecimal.limit(100)
  #     puts BigDecimal.limit
  #     BigDecimal.save_limit do
  #         BigDecimal.limit(200)
  #         puts BigDecimal.limit
  #     end
  #     puts BigDecimal.limit
  #
  def self.save_limit: () { (?nil) -> void } -> void

  # Execute the provided block, but preserve the rounding mode
  #
  #     BigDecimal.save_rounding_mode do
  #       BigDecimal.mode(BigDecimal::ROUND_MODE, :up)
  #       puts BigDecimal.mode(BigDecimal::ROUND_MODE)
  #     end
  #
  # For use with the BigDecimal::ROUND_*
  #
  # See BigDecimal.mode
  #
  def self.save_rounding_mode: () { (?nil) -> void } -> void

  public

  # Returns the modulus from dividing by b.
  #
  # See BigDecimal#divmod.
  #
  def %: (Numeric) -> BigDecimal

  # Multiply by the specified value.
  #
  # e.g.
  #     c = a.mult(b,n)
  #     c = a * b
  #
  # digits
  # :   If specified and less than the number of significant digits of the result,
  #     the result is rounded to that number of digits, according to
  #     BigDecimal.mode.
  #
  def *: (Numeric) -> BigDecimal

  # Returns the value raised to the power of n.
  #
  # See BigDecimal#power.
  #
  def **: (Numeric) -> BigDecimal

  # Add the specified value.
  #
  # e.g.
  #     c = a.add(b,n)
  #     c = a + b
  #
  # digits
  # :   If specified and less than the number of significant digits of the result,
  #     the result is rounded to that number of digits, according to
  #     BigDecimal.mode.
  #
  def +: (Numeric) -> BigDecimal

  # Return self.
  #
  #     +BigDecimal('5')  #=> 0.5e1
  #
  def +@: () -> BigDecimal

  # Subtract the specified value.
  #
  # e.g.
  #     c = a - b
  #
  # The precision of the result value depends on the type of `b`.
  #
  # If `b` is a Float, the precision of the result is Float::DIG+1.
  #
  # If `b` is a BigDecimal, the precision of the result is `b`'s precision of
  # internal representation from platform. So, it's return value is platform
  # dependent.
  #
  def -: (Numeric) -> BigDecimal

  # Return the negation of self.
  #
  #     -BigDecimal('5')  #=> -0.5e1
  #
  def -@: () -> BigDecimal

  # Divide by the specified value.
  #
  # See BigDecimal#div.
  #
  def /: (Numeric) -> BigDecimal

  # Returns true if a is less than b.
  #
  # Values may be coerced to perform the comparison (see ==, BigDecimal#coerce).
  #
  def <: (Numeric) -> bool

  # Returns true if a is less than or equal to b.
  #
  # Values may be coerced to perform the comparison (see ==, BigDecimal#coerce).
  #
  def <=: (Numeric) -> bool

  # The comparison operator. a <=> b is 0 if a == b, 1 if a > b, -1 if a < b.
  #
  def <=>: (Numeric) -> Integer?

  # Tests for value equality; returns true if the values are equal.
  #
  # The == and === operators and the eql? method have the same implementation for
  # BigDecimal.
  #
  # Values may be coerced to perform the comparison:
  #
  #     BigDecimal('1.0') == 1.0  #=> true
  #
  def ==: (untyped) -> bool

  # Tests for value equality; returns true if the values are equal.
  #
  # The == and === operators and the eql? method have the same implementation for
  # BigDecimal.
  #
  # Values may be coerced to perform the comparison:
  #
  #     BigDecimal('1.0') == 1.0  #=> true
  #
  def ===: (untyped) -> bool

  # Returns true if a is greater than b.
  #
  # Values may be coerced to perform the comparison (see ==, BigDecimal#coerce).
  #
  def >: (Numeric) -> bool

  # Returns true if a is greater than or equal to b.
  #
  # Values may be coerced to perform the comparison (see ==, BigDecimal#coerce)
  #
  def >=: (Numeric) -> bool

  # Method used to provide marshalling support.
  #
  #     inf = BigDecimal('Infinity')
  #       #=> Infinity
  #     BigDecimal._load(inf._dump)
  #       #=> Infinity
  #
  # See the Marshal module.
  #
  def _dump: (?untyped) -> String

  # Returns the absolute value, as a BigDecimal.
  #
  #     BigDecimal('5').abs  #=> 0.5e1
  #     BigDecimal('-3').abs #=> 0.3e1
  #
  def abs: () -> BigDecimal

  # Add the specified value.
  #
  # e.g.
  #     c = a.add(b,n)
  #     c = a + b
  #
  # digits
  # :   If specified and less than the number of significant digits of the result,
  #     the result is rounded to that number of digits, according to
  #     BigDecimal.mode.
  #
  def add: (Numeric value, Integer digits) -> BigDecimal

  # Return the smallest integer greater than or equal to the value, as a
  # BigDecimal.
  #
  #     BigDecimal('3.14159').ceil #=> 4
  #     BigDecimal('-9.1').ceil #=> -9
  #
  # If n is specified and positive, the fractional part of the result has no more
  # than that many digits.
  #
  # If n is specified and negative, at least that many digits to the left of the
  # decimal point will be 0 in the result.
  #
  #     BigDecimal('3.14159').ceil(3) #=> 3.142
  #     BigDecimal('13345.234').ceil(-2) #=> 13400.0
  #
  def ceil: () -> Integer
          | (int n) -> BigDecimal

  def clone: () -> self

  # The coerce method provides support for Ruby type coercion. It is not enabled
  # by default.
  #
  # This means that binary operations like + * / or - can often be performed on a
  # BigDecimal and an object of another type, if the other object can be coerced
  # into a BigDecimal value.
  #
  # e.g.
  #     a = BigDecimal("1.0")
  #     b = a / 2.0 #=> 0.5
  #
  # Note that coercing a String to a BigDecimal is not supported by default; it
  # requires a special compile-time option when building Ruby.
  #
  def coerce: (Numeric) -> [BigDecimal, BigDecimal]

  # Divide by the specified value.
  #
  # digits
  # :   If specified and less than the number of significant digits of the result,
  #     the result is rounded to that number of digits, according to
  #     BigDecimal.mode.
  #
  #     If digits is 0, the result is the same as for the / operator or #quo.
  #
  #     If digits is not specified, the result is an integer, by analogy with
  #     Float#div; see also BigDecimal#divmod.
  #
  #
  # Examples:
  #
  #     a = BigDecimal("4")
  #     b = BigDecimal("3")
  #
  #     a.div(b, 3)  # => 0.133e1
  #
  #     a.div(b, 0)  # => 0.1333333333333333333e1
  #     a / b        # => 0.1333333333333333333e1
  #     a.quo(b)     # => 0.1333333333333333333e1
  #
  #     a.div(b)     # => 1
  #
  def div: (Numeric value) -> Integer
         | (Numeric value, int digits) -> BigDecimal

  # Divides by the specified value, and returns the quotient and modulus as
  # BigDecimal numbers. The quotient is rounded towards negative infinity.
  #
  # For example:
  #
  #     require 'bigdecimal'
  #
  #     a = BigDecimal("42")
  #     b = BigDecimal("9")
  #
  #     q, m = a.divmod(b)
  #
  #     c = q * b + m
  #
  #     a == c  #=> true
  #
  # The quotient q is (a/b).floor, and the modulus is the amount that must be
  # added to q * b to get a.
  #
  def divmod: (Numeric) -> [BigDecimal, BigDecimal]

  def dup: () -> self

  # Tests for value equality; returns true if the values are equal.
  #
  # The == and === operators and the eql? method have the same implementation for
  # BigDecimal.
  #
  # Values may be coerced to perform the comparison:
  #
  #     BigDecimal('1.0') == 1.0  #=> true
  #
  def eql?: (untyped) -> bool

  # Returns the exponent of the BigDecimal number, as an Integer.
  #
  # If the number can be represented as 0.xxxxxx*10**n where xxxxxx is a string of
  # digits with no leading zeros, then n is the exponent.
  #
  def exponent: () -> Integer

  # Returns True if the value is finite (not NaN or infinite).
  #
  def finite?: () -> bool

  # Return the integer part of the number, as a BigDecimal.
  #
  def fix: () -> BigDecimal

  # Return the largest integer less than or equal to the value, as a BigDecimal.
  #
  #     BigDecimal('3.14159').floor #=> 3
  #     BigDecimal('-9.1').floor #=> -10
  #
  # If n is specified and positive, the fractional part of the result has no more
  # than that many digits.
  #
  # If n is specified and negative, at least that many digits to the left of the
  # decimal point will be 0 in the result.
  #
  #     BigDecimal('3.14159').floor(3) #=> 3.141
  #     BigDecimal('13345.234').floor(-2) #=> 13300.0
  #
  def floor: () -> Integer
           | (int n) -> BigDecimal

  # Return the fractional part of the number, as a BigDecimal.
  #
  def frac: () -> BigDecimal

  # Creates a hash for this BigDecimal.
  #
  # Two BigDecimals with equal sign, fractional part and exponent have the same
  # hash.
  #
  def hash: () -> Integer

  # Returns nil, -1, or +1 depending on whether the value is finite, -Infinity, or
  # +Infinity.
  #
  def infinite?: () -> Integer?

  # Returns a string representation of self.
  #
  #     BigDecimal("1234.5678").inspect
  #       #=> "0.12345678e4"
  #
  def inspect: () -> String

  # Returns the modulus from dividing by b.
  #
  # See BigDecimal#divmod.
  #
  def modulo: (Numeric b) -> BigDecimal

  # Multiply by the specified value.
  #
  # e.g.
  #     c = a.mult(b,n)
  #     c = a * b
  #
  # digits
  # :   If specified and less than the number of significant digits of the result,
  #     the result is rounded to that number of digits, according to
  #     BigDecimal.mode.
  #
  def mult: (Numeric value, int digits) -> BigDecimal

  # Returns True if the value is Not a Number.
  #
  def nan?: () -> bool

  # Returns self if the value is non-zero, nil otherwise.
  #
  def nonzero?: () -> self?

  # Returns the value raised to the power of n.
  #
  # Note that n must be an Integer.
  #
  # Also available as the operator **.
  #
  def power: (Numeric n, int prec) -> BigDecimal

  # Returns an Array of two Integer values.
  #
  # The first value is the current number of significant digits in the BigDecimal.
  # The second value is the maximum number of significant digits for the
  # BigDecimal.
  #
  #     BigDecimal('5').precs #=> [9, 18]
  #
  def precs: () -> [Integer, Integer]

  # Divide by the specified value.
  #
  # See BigDecimal#div.
  #
  def quo: (Numeric) -> BigDecimal

  # Returns the remainder from dividing by the value.
  #
  # x.remainder(y) means x-y*(x/y).truncate
  #
  def remainder: (Numeric) -> BigDecimal

  # Round to the nearest integer (by default), returning the result as a
  # BigDecimal if n is specified, or as an Integer if it isn't.
  #
  #     BigDecimal('3.14159').round #=> 3
  #     BigDecimal('8.7').round #=> 9
  #     BigDecimal('-9.9').round #=> -10
  #
  #     BigDecimal('3.14159').round(2).class.name #=> "BigDecimal"
  #     BigDecimal('3.14159').round.class.name #=> "Integer"
  #
  # If n is specified and positive, the fractional part of the result has no more
  # than that many digits.
  #
  # If n is specified and negative, at least that many digits to the left of the
  # decimal point will be 0 in the result.
  #
  #     BigDecimal('3.14159').round(3) #=> 3.142
  #     BigDecimal('13345.234').round(-2) #=> 13300.0
  #
  # The value of the optional mode argument can be used to determine how rounding
  # is performed; see BigDecimal.mode.
  #
  def round: () -> Integer
           | (Numeric n, ?Integer mode) -> BigDecimal

  # Returns the sign of the value.
  #
  # Returns a positive value if > 0, a negative value if < 0, and a zero if == 0.
  #
  # The specific value returned indicates the type and sign of the BigDecimal, as
  # follows:
  #
  # BigDecimal::SIGN_NaN
  # :   value is Not a Number
  # BigDecimal::SIGN_POSITIVE_ZERO
  # :   value is +0
  # BigDecimal::SIGN_NEGATIVE_ZERO
  # :   value is -0
  # BigDecimal::SIGN_POSITIVE_INFINITE
  # :   value is +Infinity
  # BigDecimal::SIGN_NEGATIVE_INFINITE
  # :   value is -Infinity
  # BigDecimal::SIGN_POSITIVE_FINITE
  # :   value is positive
  # BigDecimal::SIGN_NEGATIVE_FINITE
  # :   value is negative
  #
  def sign: () -> Integer

  # Splits a BigDecimal number into four parts, returned as an array of values.
  #
  # The first value represents the sign of the BigDecimal, and is -1 or 1, or 0 if
  # the BigDecimal is Not a Number.
  #
  # The second value is a string representing the significant digits of the
  # BigDecimal, with no leading zeros.
  #
  # The third value is the base used for arithmetic (currently always 10) as an
  # Integer.
  #
  # The fourth value is an Integer exponent.
  #
  # If the BigDecimal can be represented as 0.xxxxxx*10**n, then xxxxxx is the
  # string of significant digits with no leading zeros, and n is the exponent.
  #
  # From these values, you can translate a BigDecimal to a float as follows:
  #
  #     sign, significant_digits, base, exponent = a.split
  #     f = sign * "0.#{significant_digits}".to_f * (base ** exponent)
  #
  # (Note that the to_f method is provided as a more convenient way to translate a
  # BigDecimal to a Float.)
  #
  def split: () -> [Integer, String, Integer, Integer]

  # Returns the square root of the value.
  #
  # Result has at least n significant digits.
  #
  def sqrt: (int n) -> BigDecimal

  # Subtract the specified value.
  #
  # e.g.
  #     c = a.sub(b,n)
  #
  # digits
  # :   If specified and less than the number of significant digits of the result,
  #     the result is rounded to that number of digits, according to
  #     BigDecimal.mode.
  #
  def sub: (Numeric value, int digits) -> BigDecimal

  # Returns a new Float object having approximately the same value as the
  # BigDecimal number. Normal accuracy limits and built-in errors of binary Float
  # arithmetic apply.
  #
  def to_f: () -> Float

  # Returns the value as an Integer.
  #
  # If the BigDecimal is infinity or NaN, raises FloatDomainError.
  #
  def to_i: () -> Integer

  # Returns the value as an Integer.
  #
  # If the BigDecimal is infinity or NaN, raises FloatDomainError.
  #
  def to_int: () -> Integer

  # Converts a BigDecimal to a Rational.
  #
  def to_r: () -> Rational

  # Converts the value to a string.
  #
  # The default format looks like  0.xxxxEnn.
  #
  # The optional parameter s consists of either an integer; or an optional '+' or
  # ' ', followed by an optional number, followed by an optional 'E' or 'F'.
  #
  # If there is a '+' at the start of s, positive values are returned with a
  # leading '+'.
  #
  # A space at the start of s returns positive values with a leading space.
  #
  # If s contains a number, a space is inserted after each group of that many
  # fractional digits.
  #
  # If s ends with an 'E', engineering notation (0.xxxxEnn) is used.
  #
  # If s ends with an 'F', conventional floating point notation is used.
  #
  # Examples:
  #
  #     BigDecimal('-123.45678901234567890').to_s('5F')
  #       #=> '-123.45678 90123 45678 9'
  #
  #     BigDecimal('123.45678901234567890').to_s('+8F')
  #       #=> '+123.45678901 23456789'
  #
  #     BigDecimal('123.45678901234567890').to_s(' F')
  #       #=> ' 123.4567890123456789'
  #
  def to_s: (?(String | int) s) -> String

  # Truncate to the nearest integer (by default), returning the result as a
  # BigDecimal.
  #
  #     BigDecimal('3.14159').truncate #=> 3
  #     BigDecimal('8.7').truncate #=> 8
  #     BigDecimal('-9.9').truncate #=> -9
  #
  # If n is specified and positive, the fractional part of the result has no more
  # than that many digits.
  #
  # If n is specified and negative, at least that many digits to the left of the
  # decimal point will be 0 in the result.
  #
  #     BigDecimal('3.14159').truncate(3) #=> 3.141
  #     BigDecimal('13345.234').truncate(-2) #=> 13300.0
  #
  def truncate: () -> Integer
              | (int n) -> BigDecimal

  # Returns True if the value is zero.
  #
  def zero?: () -> bool

  private

  def initialize_copy: (self) -> self
end

# Base value used in internal calculations.  On a 32 bit system, BASE is 10000,
# indicating that calculation is done in groups of 4 digits. (If it were larger,
# BASE**2 wouldn't fit in 32 bits, so you couldn't guarantee that two groups
# could always be multiplied together without overflow.)
#
BigDecimal::BASE: Integer

# Determines whether overflow, underflow or zero divide result in an exception
# being thrown. See BigDecimal.mode.
#
BigDecimal::EXCEPTION_ALL: Integer

# Determines what happens when the result of a computation is infinity.  See
# BigDecimal.mode.
#
BigDecimal::EXCEPTION_INFINITY: Integer

# Determines what happens when the result of a computation is not a number
# (NaN). See BigDecimal.mode.
#
BigDecimal::EXCEPTION_NaN: Integer

# Determines what happens when the result of a computation is an overflow (a
# result too large to be represented). See BigDecimal.mode.
#
BigDecimal::EXCEPTION_OVERFLOW: Integer

# Determines what happens when the result of a computation is an underflow (a
# result too small to be represented). See BigDecimal.mode.
#
BigDecimal::EXCEPTION_UNDERFLOW: Integer

# Determines what happens when a division by zero is performed. See
# BigDecimal.mode.
#
BigDecimal::EXCEPTION_ZERODIVIDE: Integer

# Positive infinity value.
#
BigDecimal::INFINITY: BigDecimal

# 'Not a Number' value.
#
BigDecimal::NAN: BigDecimal

# Round towards +Infinity. See BigDecimal.mode.
#
BigDecimal::ROUND_CEILING: Integer

# Indicates that values should be rounded towards zero. See BigDecimal.mode.
#
BigDecimal::ROUND_DOWN: Integer

# Round towards -Infinity. See BigDecimal.mode.
#
BigDecimal::ROUND_FLOOR: Integer

# Indicates that digits >= 6 should be rounded up, others rounded down. See
# BigDecimal.mode.
#
BigDecimal::ROUND_HALF_DOWN: Integer

# Round towards the even neighbor. See BigDecimal.mode.
#
BigDecimal::ROUND_HALF_EVEN: Integer

# Indicates that digits >= 5 should be rounded up, others rounded down. See
# BigDecimal.mode.
#
BigDecimal::ROUND_HALF_UP: Integer

# Determines what happens when a result must be rounded in order to fit in the
# appropriate number of significant digits. See BigDecimal.mode.
#
BigDecimal::ROUND_MODE: Integer

# Indicates that values should be rounded away from zero. See BigDecimal.mode.
#
BigDecimal::ROUND_UP: Integer

# Indicates that a value is negative and finite. See BigDecimal.sign.
#
BigDecimal::SIGN_NEGATIVE_FINITE: Integer

# Indicates that a value is negative and infinite. See BigDecimal.sign.
#
BigDecimal::SIGN_NEGATIVE_INFINITE: Integer

# Indicates that a value is -0. See BigDecimal.sign.
#
BigDecimal::SIGN_NEGATIVE_ZERO: Integer

# Indicates that a value is not a number. See BigDecimal.sign.
#
BigDecimal::SIGN_NaN: Integer

# Indicates that a value is positive and finite. See BigDecimal.sign.
#
BigDecimal::SIGN_POSITIVE_FINITE: Integer

# Indicates that a value is positive and infinite. See BigDecimal.sign.
#
BigDecimal::SIGN_POSITIVE_INFINITE: Integer

# Indicates that a value is +0. See BigDecimal.sign.
#
BigDecimal::SIGN_POSITIVE_ZERO: Integer

# The version of bigdecimal library
#
BigDecimal::VERSION: String