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183 lines
7.3 KiB
183 lines
7.3 KiB
------------------------------------------------------------------------
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-- minus.decTest -- decimal negation --
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-- Copyright (c) IBM Corporation, 1981, 2008. All rights reserved. --
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------------------------------------------------------------------------
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-- Please see the document "General Decimal Arithmetic Testcases" --
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-- at http://www2.hursley.ibm.com/decimal for the description of --
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-- these testcases. --
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-- --
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-- These testcases are experimental ('beta' versions), and they --
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-- may contain errors. They are offered on an as-is basis. In --
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-- particular, achieving the same results as the tests here is not --
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-- a guarantee that an implementation complies with any Standard --
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-- or specification. The tests are not exhaustive. --
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-- --
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-- Please send comments, suggestions, and corrections to the author: --
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-- Mike Cowlishaw, IBM Fellow --
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-- IBM UK, PO Box 31, Birmingham Road, Warwick CV34 5JL, UK --
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-- mfc@uk.ibm.com --
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------------------------------------------------------------------------
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version: 2.59
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-- This set of tests primarily tests the existence of the operator.
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-- Subtraction, rounding, and more overflows are tested elsewhere.
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extended: 1
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precision: 9
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rounding: half_up
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maxExponent: 384
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minexponent: -383
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minx001 minus '1' -> '-1'
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minx002 minus '-1' -> '1'
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minx003 minus '1.00' -> '-1.00'
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minx004 minus '-1.00' -> '1.00'
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minx005 minus '0' -> '0'
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minx006 minus '0.00' -> '0.00'
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minx007 minus '00.0' -> '0.0'
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minx008 minus '00.00' -> '0.00'
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minx009 minus '00' -> '0'
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minx010 minus '-2' -> '2'
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minx011 minus '2' -> '-2'
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minx012 minus '-2.00' -> '2.00'
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minx013 minus '2.00' -> '-2.00'
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minx014 minus '-0' -> '0'
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minx015 minus '-0.00' -> '0.00'
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minx016 minus '-00.0' -> '0.0'
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minx017 minus '-00.00' -> '0.00'
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minx018 minus '-00' -> '0'
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-- "lhs" zeros in plus and minus have exponent = operand
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minx020 minus '-0E3' -> '0E+3'
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minx021 minus '-0E2' -> '0E+2'
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minx022 minus '-0E1' -> '0E+1'
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minx023 minus '-0E0' -> '0'
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minx024 minus '+0E0' -> '0'
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minx025 minus '+0E1' -> '0E+1'
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minx026 minus '+0E2' -> '0E+2'
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minx027 minus '+0E3' -> '0E+3'
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minx030 minus '-5E3' -> '5E+3'
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minx031 minus '-5E8' -> '5E+8'
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minx032 minus '-5E13' -> '5E+13'
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minx033 minus '-5E18' -> '5E+18'
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minx034 minus '+5E3' -> '-5E+3'
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minx035 minus '+5E8' -> '-5E+8'
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minx036 minus '+5E13' -> '-5E+13'
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minx037 minus '+5E18' -> '-5E+18'
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minx050 minus '-2000000' -> '2000000'
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minx051 minus '2000000' -> '-2000000'
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precision: 7
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minx052 minus '-2000000' -> '2000000'
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minx053 minus '2000000' -> '-2000000'
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precision: 6
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minx054 minus '-2000000' -> '2.00000E+6' Rounded
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minx055 minus '2000000' -> '-2.00000E+6' Rounded
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precision: 3
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minx056 minus '-2000000' -> '2.00E+6' Rounded
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minx057 minus '2000000' -> '-2.00E+6' Rounded
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-- more fixed, potential LHS swaps/overlays if done by 0 subtract x
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precision: 9
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minx060 minus '56267E-10' -> '-0.0000056267'
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minx061 minus '56267E-5' -> '-0.56267'
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minx062 minus '56267E-2' -> '-562.67'
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minx063 minus '56267E-1' -> '-5626.7'
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minx065 minus '56267E-0' -> '-56267'
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minx066 minus '56267E+0' -> '-56267'
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minx067 minus '56267E+1' -> '-5.6267E+5'
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minx068 minus '56267E+2' -> '-5.6267E+6'
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minx069 minus '56267E+3' -> '-5.6267E+7'
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minx070 minus '56267E+4' -> '-5.6267E+8'
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minx071 minus '56267E+5' -> '-5.6267E+9'
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minx072 minus '56267E+6' -> '-5.6267E+10'
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minx080 minus '-56267E-10' -> '0.0000056267'
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minx081 minus '-56267E-5' -> '0.56267'
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minx082 minus '-56267E-2' -> '562.67'
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minx083 minus '-56267E-1' -> '5626.7'
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minx085 minus '-56267E-0' -> '56267'
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minx086 minus '-56267E+0' -> '56267'
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minx087 minus '-56267E+1' -> '5.6267E+5'
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minx088 minus '-56267E+2' -> '5.6267E+6'
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minx089 minus '-56267E+3' -> '5.6267E+7'
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minx090 minus '-56267E+4' -> '5.6267E+8'
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minx091 minus '-56267E+5' -> '5.6267E+9'
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minx092 minus '-56267E+6' -> '5.6267E+10'
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-- overflow tests
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maxexponent: 999999999
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minexponent: -999999999
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precision: 3
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minx100 minus 9.999E+999999999 -> -Infinity Inexact Overflow Rounded
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minx101 minus -9.999E+999999999 -> Infinity Inexact Overflow Rounded
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-- subnormals and underflow
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precision: 3
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maxexponent: 999
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minexponent: -999
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minx110 minus 1.00E-999 -> -1.00E-999
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minx111 minus 0.1E-999 -> -1E-1000 Subnormal
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minx112 minus 0.10E-999 -> -1.0E-1000 Subnormal
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minx113 minus 0.100E-999 -> -1.0E-1000 Subnormal Rounded
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minx114 minus 0.01E-999 -> -1E-1001 Subnormal
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-- next is rounded to Emin
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minx115 minus 0.999E-999 -> -1.00E-999 Inexact Rounded Subnormal Underflow
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minx116 minus 0.099E-999 -> -1.0E-1000 Inexact Rounded Subnormal Underflow
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minx117 minus 0.009E-999 -> -1E-1001 Inexact Rounded Subnormal Underflow
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minx118 minus 0.001E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
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minx119 minus 0.0009E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
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minx120 minus 0.0001E-999 -> -0E-1001 Inexact Rounded Subnormal Underflow Clamped
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minx130 minus -1.00E-999 -> 1.00E-999
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minx131 minus -0.1E-999 -> 1E-1000 Subnormal
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minx132 minus -0.10E-999 -> 1.0E-1000 Subnormal
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minx133 minus -0.100E-999 -> 1.0E-1000 Subnormal Rounded
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minx134 minus -0.01E-999 -> 1E-1001 Subnormal
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-- next is rounded to Emin
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minx135 minus -0.999E-999 -> 1.00E-999 Inexact Rounded Subnormal Underflow
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minx136 minus -0.099E-999 -> 1.0E-1000 Inexact Rounded Subnormal Underflow
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minx137 minus -0.009E-999 -> 1E-1001 Inexact Rounded Subnormal Underflow
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minx138 minus -0.001E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
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minx139 minus -0.0009E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
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minx140 minus -0.0001E-999 -> 0E-1001 Inexact Rounded Subnormal Underflow Clamped
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-- long operand checks
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maxexponent: 999
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minexponent: -999
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precision: 9
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minx301 minus 12345678000 -> -1.23456780E+10 Rounded
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minx302 minus 1234567800 -> -1.23456780E+9 Rounded
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minx303 minus 1234567890 -> -1.23456789E+9 Rounded
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minx304 minus 1234567891 -> -1.23456789E+9 Inexact Rounded
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minx305 minus 12345678901 -> -1.23456789E+10 Inexact Rounded
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minx306 minus 1234567896 -> -1.23456790E+9 Inexact Rounded
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precision: 15
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-- still checking
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minx321 minus 12345678000 -> -12345678000
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minx322 minus 1234567800 -> -1234567800
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minx323 minus 1234567890 -> -1234567890
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minx324 minus 1234567891 -> -1234567891
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minx325 minus 12345678901 -> -12345678901
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minx326 minus 1234567896 -> -1234567896
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-- specials
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minx420 minus 'Inf' -> '-Infinity'
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minx421 minus '-Inf' -> 'Infinity'
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minx422 minus NaN -> NaN
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minx423 minus sNaN -> NaN Invalid_operation
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minx424 minus NaN255 -> NaN255
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minx425 minus sNaN256 -> NaN256 Invalid_operation
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minx426 minus -NaN -> -NaN
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minx427 minus -sNaN -> -NaN Invalid_operation
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minx428 minus -NaN255 -> -NaN255
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minx429 minus -sNaN256 -> -NaN256 Invalid_operation
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-- Null tests
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minx900 minus # -> NaN Invalid_operation
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