------------------------------------------------------------------------
-- minus0.decTest -- decimal negation (simplified)                    --
-- Copyright (c) IBM Corporation, 1981, 2008.  All rights reserved.   --
------------------------------------------------------------------------
-- Please see the document "General Decimal Arithmetic Testcases"     --
-- at http://www2.hursley.ibm.com/decimal for the description of      --
-- these testcases.                                                   --
--                                                                    --
-- These testcases are experimental ('beta' versions), and they       --
-- may contain errors.  They are offered on an as-is basis.  In       --
-- particular, achieving the same results as the tests here is not    --
-- a guarantee that an implementation complies with any Standard      --
-- or specification.  The tests are not exhaustive.                   --
--                                                                    --
-- Please send comments, suggestions, and corrections to the author:  --
--   Mike Cowlishaw, IBM Fellow                                       --
--   IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK         --
--   mfc@uk.ibm.com                                                   --
------------------------------------------------------------------------
version: 2.58

-- This set of tests primarily tests the existence of the operator.
-- Subtraction, rounding, and more overflows are tested elsewhere.

extended:    0
precision:   9
rounding:    half_up
maxExponent: 999
minexponent: -999

min001 minus '1'      -> '-1'
min002 minus '-1'     -> '1'
min003 minus '1.00'   -> '-1.00'
min004 minus '-1.00'  -> '1.00'
min005 minus '0'      -> '0'
min006 minus '0.00'   -> '0'
min007 minus '00.0'   -> '0'
min008 minus '00.00'  -> '0'
min009 minus '00'     -> '0'

min010 minus '-2'     -> '2'
min011 minus '2'      -> '-2'
min012 minus '-2.00'  -> '2.00'
min013 minus '2.00'   -> '-2.00'
min014 minus '-0'     -> '0'
min015 minus '-0.00'  -> '0'
min016 minus '-00.0'  -> '0'
min017 minus '-00.00' -> '0'
min018 minus '-00'    -> '0'

min020 minus '-2000000' -> '2000000'
min021 minus '2000000'  -> '-2000000'
precision: 7
min022 minus '-2000000' -> '2000000'
min023 minus '2000000'  -> '-2000000'
precision: 6
min024 minus '-2000000' -> '2.00000E+6' Rounded
min025 minus '2000000'  -> '-2.00000E+6' Rounded
precision: 3
min026 minus '-2000000' -> '2.00E+6' Rounded
min027 minus '2000000'  -> '-2.00E+6' Rounded

-- more fixed, potential LHS swaps/overlays if done by subtract 0
precision: 9
min060 minus '-56267E-10'  -> '0.0000056267'
min061 minus '-56267E-5'   -> '0.56267'
min062 minus '-56267E-2'   -> '562.67'
min063 minus '-56267E-1'   -> '5626.7'
min065 minus '-56267E-0'   -> '56267'

-- overflow tests [underflow not possible]
maxexponent: 999999999
minexponent: -999999999
precision: 3
min120 minus 9.999E+999999999 -> ? Inexact Lost_digits Overflow Rounded

-- lostDigits checks
maxexponent: 999
minexponent: -999
precision: 9
min301 minus 12345678000  -> -1.23456780E+10 Rounded
min302 minus 1234567800   -> -1.23456780E+9 Rounded
min303 minus 1234567890   -> -1.23456789E+9 Rounded
min304 minus 1234567891   -> -1.23456789E+9 Inexact Lost_digits Rounded
min305 minus 12345678901  -> -1.23456789E+10 Inexact Lost_digits Rounded
min306 minus 1234567896   -> -1.23456790E+9 Inexact Lost_digits Rounded

precision: 15
-- still checking for [no] lostDigits
min321 minus 12345678000  -> -12345678000
min322 minus 1234567800   -> -1234567800
min323 minus 1234567890   -> -1234567890
min324 minus 1234567891   -> -1234567891
min325 minus 12345678901  -> -12345678901
min326 minus 1234567896   -> -1234567896

-- Null tests
min400 minus  # -> ? Invalid_operation

