python-2.5.2/win32/Lib/test/decimaltestdata/minus.decTest
changeset 0 ae805ac0140d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python-2.5.2/win32/Lib/test/decimaltestdata/minus.decTest	Fri Apr 03 17:19:34 2009 +0100
@@ -0,0 +1,182 @@
+------------------------------------------------------------------------
+-- minus.decTest -- decimal negation                                  --
+-- Copyright (c) IBM Corporation, 1981, 2007.  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: 2.57
+
+-- 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
+