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+------------------------------------------------------------------------
+-- minus.decTest -- decimal negation --
+-- 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: 2.59
+
+-- This set of tests primarily tests the existence of the operator.
+-- Subtraction, rounding, and more overflows are tested elsewhere.
+
+extended: 1
+precision: 9
+rounding: half_up
+maxExponent: 384
+minexponent: -383
+
+minx001 minus '1' -> '-1'
+minx002 minus '-1' -> '1'
+minx003 minus '1.00' -> '-1.00'
+minx004 minus '-1.00' -> '1.00'
+minx005 minus '0' -> '0'
+minx006 minus '0.00' -> '0.00'
+minx007 minus '00.0' -> '0.0'
+minx008 minus '00.00' -> '0.00'
+minx009 minus '00' -> '0'
+
+minx010 minus '-2' -> '2'
+minx011 minus '2' -> '-2'
+minx012 minus '-2.00' -> '2.00'
+minx013 minus '2.00' -> '-2.00'
+minx014 minus '-0' -> '0'
+minx015 minus '-0.00' -> '0.00'
+minx016 minus '-00.0' -> '0.0'
+minx017 minus '-00.00' -> '0.00'
+minx018 minus '-00' -> '0'
+
+-- "lhs" zeros in plus and minus have exponent = operand
+minx020 minus '-0E3' -> '0E+3'
+minx021 minus '-0E2' -> '0E+2'
+minx022 minus '-0E1' -> '0E+1'
+minx023 minus '-0E0' -> '0'
+minx024 minus '+0E0' -> '0'
+minx025 minus '+0E1' -> '0E+1'
+minx026 minus '+0E2' -> '0E+2'
+minx027 minus '+0E3' -> '0E+3'
+
+minx030 minus '-5E3' -> '5E+3'
+minx031 minus '-5E8' -> '5E+8'
+minx032 minus '-5E13' -> '5E+13'
+minx033 minus '-5E18' -> '5E+18'
+minx034 minus '+5E3' -> '-5E+3'
+minx035 minus '+5E8' -> '-5E+8'
+minx036 minus '+5E13' -> '-5E+13'
+minx037 minus '+5E18' -> '-5E+18'
+
+minx050 minus '-2000000' -> '2000000'
+minx051 minus '2000000' -> '-2000000'
+precision: 7
+minx052 minus '-2000000' -> '2000000'
+minx053 minus '2000000' -> '-2000000'
+precision: 6
+minx054 minus '-2000000' -> '2.00000E+6' Rounded
+minx055 minus '2000000' -> '-2.00000E+6' Rounded
+precision: 3
+minx056 minus '-2000000' -> '2.00E+6' Rounded
+minx057 minus '2000000' -> '-2.00E+6' Rounded
+
+-- more fixed, potential LHS swaps/overlays if done by 0 subtract x
+precision: 9
+minx060 minus '56267E-10' -> '-0.0000056267'
+minx061 minus '56267E-5' -> '-0.56267'
+minx062 minus '56267E-2' -> '-562.67'
+minx063 minus '56267E-1' -> '-5626.7'
+minx065 minus '56267E-0' -> '-56267'
+minx066 minus '56267E+0' -> '-56267'
+minx067 minus '56267E+1' -> '-5.6267E+5'
+minx068 minus '56267E+2' -> '-5.6267E+6'
+minx069 minus '56267E+3' -> '-5.6267E+7'
+minx070 minus '56267E+4' -> '-5.6267E+8'
+minx071 minus '56267E+5' -> '-5.6267E+9'
+minx072 minus '56267E+6' -> '-5.6267E+10'
+minx080 minus '-56267E-10' -> '0.0000056267'
+minx081 minus '-56267E-5' -> '0.56267'
+minx082 minus '-56267E-2' -> '562.67'
+minx083 minus '-56267E-1' -> '5626.7'
+minx085 minus '-56267E-0' -> '56267'
+minx086 minus '-56267E+0' -> '56267'
+minx087 minus '-56267E+1' -> '5.6267E+5'
+minx088 minus '-56267E+2' -> '5.6267E+6'
+minx089 minus '-56267E+3' -> '5.6267E+7'
+minx090 minus '-56267E+4' -> '5.6267E+8'
+minx091 minus '-56267E+5' -> '5.6267E+9'
+minx092 minus '-56267E+6' -> '5.6267E+10'
+
+
+-- overflow tests
+maxexponent: 999999999
+minexponent: -999999999
+precision: 3
+minx100 minus 9.999E+999999999 -> -Infinity Inexact Overflow Rounded
+minx101 minus -9.999E+999999999 -> Infinity Inexact Overflow Rounded
+
+-- subnormals and underflow
+precision: 3
+maxexponent: 999
+minexponent: -999
+minx110 minus 1.00E-999 -> -1.00E-999
+minx111 minus 0.1E-999 -> -1E-1000 Subnormal
+minx112 minus 0.10E-999 -> -1.0E-1000 Subnormal
+minx113 minus 0.100E-999 -> -1.0E-1000 Subnormal Rounded
+minx114 minus 0.01E-999 -> -1E-1001 Subnormal
+-- next is rounded to Emin
+minx115 minus 0.999E-999 -> -1.00E-999 Inexact Rounded Subnormal Underflow
+minx116 minus 0.099E-999 -> -1.0E-1000 Inexact Rounded Subnormal Underflow
+minx117 minus 0.009E-999 -> -1E-1001 Inexact Rounded Subnormal Underflow
+minx118 minus 0.001E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
+minx119 minus 0.0009E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
+minx120 minus 0.0001E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
+
+minx130 minus -1.00E-999 -> 1.00E-999
+minx131 minus -0.1E-999 -> 1E-1000 Subnormal
+minx132 minus -0.10E-999 -> 1.0E-1000 Subnormal
+minx133 minus -0.100E-999 -> 1.0E-1000 Subnormal Rounded
+minx134 minus -0.01E-999 -> 1E-1001 Subnormal
+-- next is rounded to Emin
+minx135 minus -0.999E-999 -> 1.00E-999 Inexact Rounded Subnormal Underflow
+minx136 minus -0.099E-999 -> 1.0E-1000 Inexact Rounded Subnormal Underflow
+minx137 minus -0.009E-999 -> 1E-1001 Inexact Rounded Subnormal Underflow
+minx138 minus -0.001E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
+minx139 minus -0.0009E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
+minx140 minus -0.0001E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
+
+
+-- long operand checks
+maxexponent: 999
+minexponent: -999
+precision: 9
+minx301 minus 12345678000 -> -1.23456780E+10 Rounded
+minx302 minus 1234567800 -> -1.23456780E+9 Rounded
+minx303 minus 1234567890 -> -1.23456789E+9 Rounded
+minx304 minus 1234567891 -> -1.23456789E+9 Inexact Rounded
+minx305 minus 12345678901 -> -1.23456789E+10 Inexact Rounded
+minx306 minus 1234567896 -> -1.23456790E+9 Inexact Rounded
+
+precision: 15
+-- still checking
+minx321 minus 12345678000 -> -12345678000
+minx322 minus 1234567800 -> -1234567800
+minx323 minus 1234567890 -> -1234567890
+minx324 minus 1234567891 -> -1234567891
+minx325 minus 12345678901 -> -12345678901
+minx326 minus 1234567896 -> -1234567896
+
+-- specials
+minx420 minus 'Inf' -> '-Infinity'
+minx421 minus '-Inf' -> 'Infinity'
+minx422 minus NaN -> NaN
+minx423 minus sNaN -> NaN Invalid_operation
+minx424 minus NaN255 -> NaN255
+minx425 minus sNaN256 -> NaN256 Invalid_operation
+minx426 minus -NaN -> -NaN
+minx427 minus -sNaN -> -NaN Invalid_operation
+minx428 minus -NaN255 -> -NaN255
+minx429 minus -sNaN256 -> -NaN256 Invalid_operation
+
+-- Null tests
+minx900 minus # -> NaN Invalid_operation
+
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