Merged revisions 58095-58132,58136-58148,58151-58197 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r58096 | brett.cannon | 2007-09-10 23:38:27 +0200 (Mon, 10 Sep 2007) | 4 lines
Fix a possible segfault from recursing too deep to get the repr of a list.
Closes issue #1096.
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r58097 | bill.janssen | 2007-09-10 23:51:02 +0200 (Mon, 10 Sep 2007) | 33 lines
More work on SSL support.
* Much expanded test suite:
All protocols tested against all other protocols.
All protocols tested with all certificate options.
Tests for bad key and bad cert.
Test of STARTTLS functionality.
Test of RAND_* functions.
* Fixes for threading/malloc bug.
* Issue 1065 fixed:
sslsocket class renamed to SSLSocket.
sslerror class renamed to SSLError.
Function "wrap_socket" now used to wrap an existing socket.
* Issue 1583946 finally fixed:
Support for subjectAltName added.
Subject name now returned as proper DN list of RDNs.
* SSLError exported from socket as "sslerror".
* RAND_* functions properly exported from ssl.py.
* Documentation improved:
Example of how to create a self-signed certificate.
Better indexing.
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r58098 | guido.van.rossum | 2007-09-11 00:02:25 +0200 (Tue, 11 Sep 2007) | 9 lines
Patch # 1140 (my code, approved by Effbot).
Make sure the type of the return value of re.sub(x, y, z) is the type
of y+x (i.e. unicode if either is unicode, str if they are both str)
even if there are no substitutions or if x==z (which triggered various
special cases in join_list()).
Could be backported to 2.5; no need to port to 3.0.
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r58099 | guido.van.rossum | 2007-09-11 00:36:02 +0200 (Tue, 11 Sep 2007) | 8 lines
Patch # 1026 by Benjamin Aranguren (with Alex Martelli):
Backport abc.py and isinstance/issubclass overloading to 2.6.
I had to backport test_typechecks.py myself, and make one small change
to abc.py to avoid duplicate work when x.__class__ and type(x) are the
same.
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r58100 | bill.janssen | 2007-09-11 01:41:24 +0200 (Tue, 11 Sep 2007) | 3 lines
A better way of finding an open port to test with.
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r58101 | bill.janssen | 2007-09-11 03:09:19 +0200 (Tue, 11 Sep 2007) | 4 lines
Make sure test_ssl doesn't reference the ssl module in a
context where it can't be imported.
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r58102 | bill.janssen | 2007-09-11 04:42:07 +0200 (Tue, 11 Sep 2007) | 3 lines
Fix some documentation bugs.
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r58103 | nick.coghlan | 2007-09-11 16:01:18 +0200 (Tue, 11 Sep 2007) | 1 line
Always use the -E flag when spawning subprocesses in test_cmd_line (Issue 1056)
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r58106 | thomas.heller | 2007-09-11 21:17:48 +0200 (Tue, 11 Sep 2007) | 3 lines
Disable some tests that fail on the 'ppc Debian unstable' buildbot to
find out if they cause the segfault on the 'alpha Debian' machine.
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r58108 | brett.cannon | 2007-09-11 23:02:28 +0200 (Tue, 11 Sep 2007) | 6 lines
Generators had their throw() method allowing string exceptions. That's a
no-no.
Fixes issue #1147. Need to fix 2.5 to raise a proper warning if a string
exception is passed in.
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r58112 | georg.brandl | 2007-09-12 20:03:51 +0200 (Wed, 12 Sep 2007) | 3 lines
New documentation page for the bdb module.
(This doesn't need to be merged to Py3k.)
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r58114 | georg.brandl | 2007-09-12 20:05:57 +0200 (Wed, 12 Sep 2007) | 2 lines
Bug #1152: use non-deprecated name in example.
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r58115 | georg.brandl | 2007-09-12 20:08:33 +0200 (Wed, 12 Sep 2007) | 2 lines
Fix #1122: wrong return type documented for various _Size() functions.
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r58117 | georg.brandl | 2007-09-12 20:10:56 +0200 (Wed, 12 Sep 2007) | 2 lines
Fix #1139: PyFile_Encoding really is PyFile_SetEncoding.
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r58119 | georg.brandl | 2007-09-12 20:29:18 +0200 (Wed, 12 Sep 2007) | 2 lines
bug #1154: release memory allocated by "es" PyArg_ParseTuple format specifier.
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r58121 | bill.janssen | 2007-09-12 20:52:05 +0200 (Wed, 12 Sep 2007) | 1 line
root certificate for https://svn.python.org/, used in test_ssl
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r58122 | georg.brandl | 2007-09-12 21:00:07 +0200 (Wed, 12 Sep 2007) | 3 lines
Bug #1153: repr.repr() now doesn't require set and dictionary items
to be orderable to properly represent them.
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r58125 | georg.brandl | 2007-09-12 21:29:28 +0200 (Wed, 12 Sep 2007) | 4 lines
#1120: put explicit version in the shebang lines of pydoc, idle
and smtpd.py scripts that are installed by setup.py. That way, they
work when only "make altinstall" is used.
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r58139 | mark.summerfield | 2007-09-13 16:54:30 +0200 (Thu, 13 Sep 2007) | 9 lines
Replaced variable o with obj in operator.rst because o is easy to
confuse.
Added a note about Python 3's collections.Mapping etc., above section
that describes isMappingType() etc.
Added xrefs between os, os.path, fileinput, and open().
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r58143 | facundo.batista | 2007-09-13 20:13:15 +0200 (Thu, 13 Sep 2007) | 7 lines
Merged the decimal-branch (revisions 54886 to 58140). Decimal is now
fully updated to the latests Decimal Specification (v1.66) and the
latests test cases (v2.56).
Thanks to Mark Dickinson for all his help during this process.
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r58145 | facundo.batista | 2007-09-13 20:42:09 +0200 (Thu, 13 Sep 2007) | 7 lines
Put the parameter watchexp back in (changed watchexp from an int
to a bool). Also second argument to watchexp is now converted
to Decimal, just as with all the other two-argument operations.
Thanks Mark Dickinson.
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r58147 | andrew.kuchling | 2007-09-14 00:49:34 +0200 (Fri, 14 Sep 2007) | 1 line
Add various items
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r58148 | andrew.kuchling | 2007-09-14 00:50:10 +0200 (Fri, 14 Sep 2007) | 1 line
Make target unique
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r58154 | facundo.batista | 2007-09-14 20:58:34 +0200 (Fri, 14 Sep 2007) | 3 lines
Included the new functions, and new descriptions.
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r58155 | thomas.heller | 2007-09-14 21:40:35 +0200 (Fri, 14 Sep 2007) | 2 lines
ctypes.util.find_library uses dump(1) instead of objdump(1) on Solaris.
Fixes issue #1777530; will backport to release25-maint.
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r58159 | facundo.batista | 2007-09-14 23:29:52 +0200 (Fri, 14 Sep 2007) | 3 lines
Some additions (examples and a bit on the tutorial).
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r58160 | georg.brandl | 2007-09-15 18:53:36 +0200 (Sat, 15 Sep 2007) | 2 lines
Remove bdb from the "undocumented modules" list.
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r58164 | bill.janssen | 2007-09-17 00:06:00 +0200 (Mon, 17 Sep 2007) | 15 lines
Add support for asyncore server-side SSL support. This requires
adding the 'makefile' method to ssl.SSLSocket, and importing the
requisite fakefile class from socket.py, and making the appropriate
changes to it to make it use the SSL connection.
Added sample HTTPS server to test_ssl.py, and test that uses it.
Change SSL tests to use https://svn.python.org/, instead of
www.sf.net and pop.gmail.com.
Added utility function to ssl module, get_server_certificate,
to wrap up the several things to be done to pull a certificate
from a remote server.
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r58173 | bill.janssen | 2007-09-17 01:16:46 +0200 (Mon, 17 Sep 2007) | 1 line
use binary mode when reading files for testAsyncore to make Windows happy
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r58175 | raymond.hettinger | 2007-09-17 02:55:00 +0200 (Mon, 17 Sep 2007) | 7 lines
Sync-up named tuples with the latest version of the ASPN recipe.
Allows optional commas in the field-name spec (help when named tuples are used in conjuction with sql queries).
Adds the __fields__ attribute for introspection and to support conversion to dictionary form.
Adds a __replace__() method similar to str.replace() but using a named field as a target.
Clean-up spelling and presentation in doc-strings.
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r58176 | brett.cannon | 2007-09-17 05:28:34 +0200 (Mon, 17 Sep 2007) | 5 lines
Add a bunch of GIL release/acquire points in tp_print implementations and for
PyObject_Print().
Closes issue #1164.
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r58177 | sean.reifschneider | 2007-09-17 07:45:04 +0200 (Mon, 17 Sep 2007) | 2 lines
issue1597011: Fix for bz2 module corner-case error due to error checking bug.
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r58180 | facundo.batista | 2007-09-17 18:26:50 +0200 (Mon, 17 Sep 2007) | 3 lines
Decimal is updated, :)
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r58181 | facundo.batista | 2007-09-17 19:30:13 +0200 (Mon, 17 Sep 2007) | 5 lines
The methods always return Decimal classes, even if they're
executed through a subclass (thanks Mark Dickinson).
Added a bit of testing for this.
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r58183 | sean.reifschneider | 2007-09-17 22:53:21 +0200 (Mon, 17 Sep 2007) | 2 lines
issue1082: Fixing platform and system for Vista.
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r58185 | andrew.kuchling | 2007-09-18 03:36:16 +0200 (Tue, 18 Sep 2007) | 1 line
Add item; sort properly
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r58186 | raymond.hettinger | 2007-09-18 05:33:19 +0200 (Tue, 18 Sep 2007) | 1 line
Handle corner cased on 0-tuples and 1-tuples. Add verbose option so people can see how it works.
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r58192 | georg.brandl | 2007-09-18 09:24:40 +0200 (Tue, 18 Sep 2007) | 2 lines
A bit of reordering, also show more subheadings in the lang ref index.
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r58193 | facundo.batista | 2007-09-18 18:53:18 +0200 (Tue, 18 Sep 2007) | 4 lines
Speed up of the various division operations (remainder, divide,
divideint and divmod). Thanks Mark Dickinson.
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r58197 | raymond.hettinger | 2007-09-19 00:18:02 +0200 (Wed, 19 Sep 2007) | 1 line
Cleanup docs for NamedTuple.
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diff --git a/Lib/test/decimaltestdata/ddSubtract.decTest b/Lib/test/decimaltestdata/ddSubtract.decTest
new file mode 100644
index 0000000..89895e9
--- /dev/null
+++ b/Lib/test/decimaltestdata/ddSubtract.decTest
@@ -0,0 +1,629 @@
+------------------------------------------------------------------------
+-- ddSubtract.decTest -- decDouble subtraction --
+-- 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: 2.56
+
+-- This set of tests are for decDoubles only; all arguments are
+-- representable in a decDouble
+precision: 16
+maxExponent: 384
+minExponent: -383
+extended: 1
+clamp: 1
+rounding: half_even
+
+-- [first group are 'quick confidence check']
+ddsub001 subtract 0 0 -> '0'
+ddsub002 subtract 1 1 -> '0'
+ddsub003 subtract 1 2 -> '-1'
+ddsub004 subtract 2 1 -> '1'
+ddsub005 subtract 2 2 -> '0'
+ddsub006 subtract 3 2 -> '1'
+ddsub007 subtract 2 3 -> '-1'
+
+ddsub011 subtract -0 0 -> '-0'
+ddsub012 subtract -1 1 -> '-2'
+ddsub013 subtract -1 2 -> '-3'
+ddsub014 subtract -2 1 -> '-3'
+ddsub015 subtract -2 2 -> '-4'
+ddsub016 subtract -3 2 -> '-5'
+ddsub017 subtract -2 3 -> '-5'
+
+ddsub021 subtract 0 -0 -> '0'
+ddsub022 subtract 1 -1 -> '2'
+ddsub023 subtract 1 -2 -> '3'
+ddsub024 subtract 2 -1 -> '3'
+ddsub025 subtract 2 -2 -> '4'
+ddsub026 subtract 3 -2 -> '5'
+ddsub027 subtract 2 -3 -> '5'
+
+ddsub030 subtract 11 1 -> 10
+ddsub031 subtract 10 1 -> 9
+ddsub032 subtract 9 1 -> 8
+ddsub033 subtract 1 1 -> 0
+ddsub034 subtract 0 1 -> -1
+ddsub035 subtract -1 1 -> -2
+ddsub036 subtract -9 1 -> -10
+ddsub037 subtract -10 1 -> -11
+ddsub038 subtract -11 1 -> -12
+
+ddsub040 subtract '5.75' '3.3' -> '2.45'
+ddsub041 subtract '5' '-3' -> '8'
+ddsub042 subtract '-5' '-3' -> '-2'
+ddsub043 subtract '-7' '2.5' -> '-9.5'
+ddsub044 subtract '0.7' '0.3' -> '0.4'
+ddsub045 subtract '1.3' '0.3' -> '1.0'
+ddsub046 subtract '1.25' '1.25' -> '0.00'
+
+ddsub050 subtract '1.23456789' '1.00000000' -> '0.23456789'
+ddsub051 subtract '1.23456789' '1.00000089' -> '0.23456700'
+
+ddsub060 subtract '70' '10000e+16' -> '-1.000000000000000E+20' Inexact Rounded
+ddsub061 subtract '700' '10000e+16' -> '-1.000000000000000E+20' Inexact Rounded
+ddsub062 subtract '7000' '10000e+16' -> '-9.999999999999999E+19' Inexact Rounded
+ddsub063 subtract '70000' '10000e+16' -> '-9.999999999999993E+19' Rounded
+ddsub064 subtract '700000' '10000e+16' -> '-9.999999999999930E+19' Rounded
+ -- symmetry:
+ddsub065 subtract '10000e+16' '70' -> '1.000000000000000E+20' Inexact Rounded
+ddsub066 subtract '10000e+16' '700' -> '1.000000000000000E+20' Inexact Rounded
+ddsub067 subtract '10000e+16' '7000' -> '9.999999999999999E+19' Inexact Rounded
+ddsub068 subtract '10000e+16' '70000' -> '9.999999999999993E+19' Rounded
+ddsub069 subtract '10000e+16' '700000' -> '9.999999999999930E+19' Rounded
+
+ -- some of the next group are really constructor tests
+ddsub090 subtract '00.0' '0.0' -> '0.0'
+ddsub091 subtract '00.0' '0.00' -> '0.00'
+ddsub092 subtract '0.00' '00.0' -> '0.00'
+ddsub093 subtract '00.0' '0.00' -> '0.00'
+ddsub094 subtract '0.00' '00.0' -> '0.00'
+ddsub095 subtract '3' '.3' -> '2.7'
+ddsub096 subtract '3.' '.3' -> '2.7'
+ddsub097 subtract '3.0' '.3' -> '2.7'
+ddsub098 subtract '3.00' '.3' -> '2.70'
+ddsub099 subtract '3' '3' -> '0'
+ddsub100 subtract '3' '+3' -> '0'
+ddsub101 subtract '3' '-3' -> '6'
+ddsub102 subtract '3' '0.3' -> '2.7'
+ddsub103 subtract '3.' '0.3' -> '2.7'
+ddsub104 subtract '3.0' '0.3' -> '2.7'
+ddsub105 subtract '3.00' '0.3' -> '2.70'
+ddsub106 subtract '3' '3.0' -> '0.0'
+ddsub107 subtract '3' '+3.0' -> '0.0'
+ddsub108 subtract '3' '-3.0' -> '6.0'
+
+-- the above all from add; massaged and extended. Now some new ones...
+-- [particularly important for comparisons]
+-- NB: -xE-8 below were non-exponents pre-ANSI X3-274, and -1E-7 or 0E-7
+-- with input rounding.
+ddsub120 subtract '10.23456784' '10.23456789' -> '-5E-8'
+ddsub121 subtract '10.23456785' '10.23456789' -> '-4E-8'
+ddsub122 subtract '10.23456786' '10.23456789' -> '-3E-8'
+ddsub123 subtract '10.23456787' '10.23456789' -> '-2E-8'
+ddsub124 subtract '10.23456788' '10.23456789' -> '-1E-8'
+ddsub125 subtract '10.23456789' '10.23456789' -> '0E-8'
+ddsub126 subtract '10.23456790' '10.23456789' -> '1E-8'
+ddsub127 subtract '10.23456791' '10.23456789' -> '2E-8'
+ddsub128 subtract '10.23456792' '10.23456789' -> '3E-8'
+ddsub129 subtract '10.23456793' '10.23456789' -> '4E-8'
+ddsub130 subtract '10.23456794' '10.23456789' -> '5E-8'
+ddsub131 subtract '10.23456781' '10.23456786' -> '-5E-8'
+ddsub132 subtract '10.23456782' '10.23456786' -> '-4E-8'
+ddsub133 subtract '10.23456783' '10.23456786' -> '-3E-8'
+ddsub134 subtract '10.23456784' '10.23456786' -> '-2E-8'
+ddsub135 subtract '10.23456785' '10.23456786' -> '-1E-8'
+ddsub136 subtract '10.23456786' '10.23456786' -> '0E-8'
+ddsub137 subtract '10.23456787' '10.23456786' -> '1E-8'
+ddsub138 subtract '10.23456788' '10.23456786' -> '2E-8'
+ddsub139 subtract '10.23456789' '10.23456786' -> '3E-8'
+ddsub140 subtract '10.23456790' '10.23456786' -> '4E-8'
+ddsub141 subtract '10.23456791' '10.23456786' -> '5E-8'
+ddsub142 subtract '1' '0.999999999' -> '1E-9'
+ddsub143 subtract '0.999999999' '1' -> '-1E-9'
+ddsub144 subtract '-10.23456780' '-10.23456786' -> '6E-8'
+ddsub145 subtract '-10.23456790' '-10.23456786' -> '-4E-8'
+ddsub146 subtract '-10.23456791' '-10.23456786' -> '-5E-8'
+
+-- additional scaled arithmetic tests [0.97 problem]
+ddsub160 subtract '0' '.1' -> '-0.1'
+ddsub161 subtract '00' '.97983' -> '-0.97983'
+ddsub162 subtract '0' '.9' -> '-0.9'
+ddsub163 subtract '0' '0.102' -> '-0.102'
+ddsub164 subtract '0' '.4' -> '-0.4'
+ddsub165 subtract '0' '.307' -> '-0.307'
+ddsub166 subtract '0' '.43822' -> '-0.43822'
+ddsub167 subtract '0' '.911' -> '-0.911'
+ddsub168 subtract '.0' '.02' -> '-0.02'
+ddsub169 subtract '00' '.392' -> '-0.392'
+ddsub170 subtract '0' '.26' -> '-0.26'
+ddsub171 subtract '0' '0.51' -> '-0.51'
+ddsub172 subtract '0' '.2234' -> '-0.2234'
+ddsub173 subtract '0' '.2' -> '-0.2'
+ddsub174 subtract '.0' '.0008' -> '-0.0008'
+-- 0. on left
+ddsub180 subtract '0.0' '-.1' -> '0.1'
+ddsub181 subtract '0.00' '-.97983' -> '0.97983'
+ddsub182 subtract '0.0' '-.9' -> '0.9'
+ddsub183 subtract '0.0' '-0.102' -> '0.102'
+ddsub184 subtract '0.0' '-.4' -> '0.4'
+ddsub185 subtract '0.0' '-.307' -> '0.307'
+ddsub186 subtract '0.0' '-.43822' -> '0.43822'
+ddsub187 subtract '0.0' '-.911' -> '0.911'
+ddsub188 subtract '0.0' '-.02' -> '0.02'
+ddsub189 subtract '0.00' '-.392' -> '0.392'
+ddsub190 subtract '0.0' '-.26' -> '0.26'
+ddsub191 subtract '0.0' '-0.51' -> '0.51'
+ddsub192 subtract '0.0' '-.2234' -> '0.2234'
+ddsub193 subtract '0.0' '-.2' -> '0.2'
+ddsub194 subtract '0.0' '-.0008' -> '0.0008'
+-- negatives of same
+ddsub200 subtract '0' '-.1' -> '0.1'
+ddsub201 subtract '00' '-.97983' -> '0.97983'
+ddsub202 subtract '0' '-.9' -> '0.9'
+ddsub203 subtract '0' '-0.102' -> '0.102'
+ddsub204 subtract '0' '-.4' -> '0.4'
+ddsub205 subtract '0' '-.307' -> '0.307'
+ddsub206 subtract '0' '-.43822' -> '0.43822'
+ddsub207 subtract '0' '-.911' -> '0.911'
+ddsub208 subtract '.0' '-.02' -> '0.02'
+ddsub209 subtract '00' '-.392' -> '0.392'
+ddsub210 subtract '0' '-.26' -> '0.26'
+ddsub211 subtract '0' '-0.51' -> '0.51'
+ddsub212 subtract '0' '-.2234' -> '0.2234'
+ddsub213 subtract '0' '-.2' -> '0.2'
+ddsub214 subtract '.0' '-.0008' -> '0.0008'
+
+-- more fixed, LHS swaps [really the same as testcases under add]
+ddsub220 subtract '-56267E-12' 0 -> '-5.6267E-8'
+ddsub221 subtract '-56267E-11' 0 -> '-5.6267E-7'
+ddsub222 subtract '-56267E-10' 0 -> '-0.0000056267'
+ddsub223 subtract '-56267E-9' 0 -> '-0.000056267'
+ddsub224 subtract '-56267E-8' 0 -> '-0.00056267'
+ddsub225 subtract '-56267E-7' 0 -> '-0.0056267'
+ddsub226 subtract '-56267E-6' 0 -> '-0.056267'
+ddsub227 subtract '-56267E-5' 0 -> '-0.56267'
+ddsub228 subtract '-56267E-2' 0 -> '-562.67'
+ddsub229 subtract '-56267E-1' 0 -> '-5626.7'
+ddsub230 subtract '-56267E-0' 0 -> '-56267'
+-- symmetry ...
+ddsub240 subtract 0 '-56267E-12' -> '5.6267E-8'
+ddsub241 subtract 0 '-56267E-11' -> '5.6267E-7'
+ddsub242 subtract 0 '-56267E-10' -> '0.0000056267'
+ddsub243 subtract 0 '-56267E-9' -> '0.000056267'
+ddsub244 subtract 0 '-56267E-8' -> '0.00056267'
+ddsub245 subtract 0 '-56267E-7' -> '0.0056267'
+ddsub246 subtract 0 '-56267E-6' -> '0.056267'
+ddsub247 subtract 0 '-56267E-5' -> '0.56267'
+ddsub248 subtract 0 '-56267E-2' -> '562.67'
+ddsub249 subtract 0 '-56267E-1' -> '5626.7'
+ddsub250 subtract 0 '-56267E-0' -> '56267'
+
+-- now some more from the 'new' add
+ddsub301 subtract '1.23456789' '1.00000000' -> '0.23456789'
+ddsub302 subtract '1.23456789' '1.00000011' -> '0.23456778'
+
+-- some carrying effects
+ddsub321 subtract '0.9998' '0.0000' -> '0.9998'
+ddsub322 subtract '0.9998' '0.0001' -> '0.9997'
+ddsub323 subtract '0.9998' '0.0002' -> '0.9996'
+ddsub324 subtract '0.9998' '0.0003' -> '0.9995'
+ddsub325 subtract '0.9998' '-0.0000' -> '0.9998'
+ddsub326 subtract '0.9998' '-0.0001' -> '0.9999'
+ddsub327 subtract '0.9998' '-0.0002' -> '1.0000'
+ddsub328 subtract '0.9998' '-0.0003' -> '1.0001'
+
+-- internal boundaries
+ddsub346 subtract '10000e+9' '7' -> '9999999999993'
+ddsub347 subtract '10000e+9' '70' -> '9999999999930'
+ddsub348 subtract '10000e+9' '700' -> '9999999999300'
+ddsub349 subtract '10000e+9' '7000' -> '9999999993000'
+ddsub350 subtract '10000e+9' '70000' -> '9999999930000'
+ddsub351 subtract '10000e+9' '700000' -> '9999999300000'
+ddsub352 subtract '7' '10000e+9' -> '-9999999999993'
+ddsub353 subtract '70' '10000e+9' -> '-9999999999930'
+ddsub354 subtract '700' '10000e+9' -> '-9999999999300'
+ddsub355 subtract '7000' '10000e+9' -> '-9999999993000'
+ddsub356 subtract '70000' '10000e+9' -> '-9999999930000'
+ddsub357 subtract '700000' '10000e+9' -> '-9999999300000'
+
+-- zero preservation
+ddsub361 subtract 1 '0.0001' -> '0.9999'
+ddsub362 subtract 1 '0.00001' -> '0.99999'
+ddsub363 subtract 1 '0.000001' -> '0.999999'
+ddsub364 subtract 1 '0.0000000000000001' -> '0.9999999999999999'
+ddsub365 subtract 1 '0.00000000000000001' -> '1.000000000000000' Inexact Rounded
+ddsub366 subtract 1 '0.000000000000000001' -> '1.000000000000000' Inexact Rounded
+
+-- some funny zeros [in case of bad signum]
+ddsub370 subtract 1 0 -> 1
+ddsub371 subtract 1 0. -> 1
+ddsub372 subtract 1 .0 -> 1.0
+ddsub373 subtract 1 0.0 -> 1.0
+ddsub374 subtract 0 1 -> -1
+ddsub375 subtract 0. 1 -> -1
+ddsub376 subtract .0 1 -> -1.0
+ddsub377 subtract 0.0 1 -> -1.0
+
+-- leading 0 digit before round
+ddsub910 subtract -103519362 -51897955.3 -> -51621406.7
+ddsub911 subtract 159579.444 89827.5229 -> 69751.9211
+
+ddsub920 subtract 333.0000000123456 33.00000001234566 -> 299.9999999999999 Inexact Rounded
+ddsub921 subtract 333.0000000123456 33.00000001234565 -> 300.0000000000000 Inexact Rounded
+ddsub922 subtract 133.0000000123456 33.00000001234565 -> 99.99999999999995
+ddsub923 subtract 133.0000000123456 33.00000001234564 -> 99.99999999999996
+ddsub924 subtract 133.0000000123456 33.00000001234540 -> 100.0000000000002 Rounded
+ddsub925 subtract 133.0000000123456 43.00000001234560 -> 90.00000000000000
+ddsub926 subtract 133.0000000123456 43.00000001234561 -> 89.99999999999999
+ddsub927 subtract 133.0000000123456 43.00000001234566 -> 89.99999999999994
+ddsub928 subtract 101.0000000123456 91.00000001234566 -> 9.99999999999994
+ddsub929 subtract 101.0000000123456 99.00000001234566 -> 1.99999999999994
+
+-- more LHS swaps [were fixed]
+ddsub390 subtract '-56267E-10' 0 -> '-0.0000056267'
+ddsub391 subtract '-56267E-6' 0 -> '-0.056267'
+ddsub392 subtract '-56267E-5' 0 -> '-0.56267'
+ddsub393 subtract '-56267E-4' 0 -> '-5.6267'
+ddsub394 subtract '-56267E-3' 0 -> '-56.267'
+ddsub395 subtract '-56267E-2' 0 -> '-562.67'
+ddsub396 subtract '-56267E-1' 0 -> '-5626.7'
+ddsub397 subtract '-56267E-0' 0 -> '-56267'
+ddsub398 subtract '-5E-10' 0 -> '-5E-10'
+ddsub399 subtract '-5E-7' 0 -> '-5E-7'
+ddsub400 subtract '-5E-6' 0 -> '-0.000005'
+ddsub401 subtract '-5E-5' 0 -> '-0.00005'
+ddsub402 subtract '-5E-4' 0 -> '-0.0005'
+ddsub403 subtract '-5E-1' 0 -> '-0.5'
+ddsub404 subtract '-5E0' 0 -> '-5'
+ddsub405 subtract '-5E1' 0 -> '-50'
+ddsub406 subtract '-5E5' 0 -> '-500000'
+ddsub407 subtract '-5E15' 0 -> '-5000000000000000'
+ddsub408 subtract '-5E16' 0 -> '-5.000000000000000E+16' Rounded
+ddsub409 subtract '-5E17' 0 -> '-5.000000000000000E+17' Rounded
+ddsub410 subtract '-5E18' 0 -> '-5.000000000000000E+18' Rounded
+ddsub411 subtract '-5E100' 0 -> '-5.000000000000000E+100' Rounded
+
+-- more RHS swaps [were fixed]
+ddsub420 subtract 0 '-56267E-10' -> '0.0000056267'
+ddsub421 subtract 0 '-56267E-6' -> '0.056267'
+ddsub422 subtract 0 '-56267E-5' -> '0.56267'
+ddsub423 subtract 0 '-56267E-4' -> '5.6267'
+ddsub424 subtract 0 '-56267E-3' -> '56.267'
+ddsub425 subtract 0 '-56267E-2' -> '562.67'
+ddsub426 subtract 0 '-56267E-1' -> '5626.7'
+ddsub427 subtract 0 '-56267E-0' -> '56267'
+ddsub428 subtract 0 '-5E-10' -> '5E-10'
+ddsub429 subtract 0 '-5E-7' -> '5E-7'
+ddsub430 subtract 0 '-5E-6' -> '0.000005'
+ddsub431 subtract 0 '-5E-5' -> '0.00005'
+ddsub432 subtract 0 '-5E-4' -> '0.0005'
+ddsub433 subtract 0 '-5E-1' -> '0.5'
+ddsub434 subtract 0 '-5E0' -> '5'
+ddsub435 subtract 0 '-5E1' -> '50'
+ddsub436 subtract 0 '-5E5' -> '500000'
+ddsub437 subtract 0 '-5E15' -> '5000000000000000'
+ddsub438 subtract 0 '-5E16' -> '5.000000000000000E+16' Rounded
+ddsub439 subtract 0 '-5E17' -> '5.000000000000000E+17' Rounded
+ddsub440 subtract 0 '-5E18' -> '5.000000000000000E+18' Rounded
+ddsub441 subtract 0 '-5E100' -> '5.000000000000000E+100' Rounded
+
+
+-- try borderline precision, with carries, etc.
+ddsub461 subtract '1E+16' '1' -> '9999999999999999'
+ddsub462 subtract '1E+12' '-1.111' -> '1000000000001.111'
+ddsub463 subtract '1.111' '-1E+12' -> '1000000000001.111'
+ddsub464 subtract '-1' '-1E+16' -> '9999999999999999'
+ddsub465 subtract '7E+15' '1' -> '6999999999999999'
+ddsub466 subtract '7E+12' '-1.111' -> '7000000000001.111'
+ddsub467 subtract '1.111' '-7E+12' -> '7000000000001.111'
+ddsub468 subtract '-1' '-7E+15' -> '6999999999999999'
+
+-- 1234567890123456 1234567890123456 1 23456789012345
+ddsub470 subtract '0.4444444444444444' '-0.5555555555555563' -> '1.000000000000001' Inexact Rounded
+ddsub471 subtract '0.4444444444444444' '-0.5555555555555562' -> '1.000000000000001' Inexact Rounded
+ddsub472 subtract '0.4444444444444444' '-0.5555555555555561' -> '1.000000000000000' Inexact Rounded
+ddsub473 subtract '0.4444444444444444' '-0.5555555555555560' -> '1.000000000000000' Inexact Rounded
+ddsub474 subtract '0.4444444444444444' '-0.5555555555555559' -> '1.000000000000000' Inexact Rounded
+ddsub475 subtract '0.4444444444444444' '-0.5555555555555558' -> '1.000000000000000' Inexact Rounded
+ddsub476 subtract '0.4444444444444444' '-0.5555555555555557' -> '1.000000000000000' Inexact Rounded
+ddsub477 subtract '0.4444444444444444' '-0.5555555555555556' -> '1.000000000000000' Rounded
+ddsub478 subtract '0.4444444444444444' '-0.5555555555555555' -> '0.9999999999999999'
+ddsub479 subtract '0.4444444444444444' '-0.5555555555555554' -> '0.9999999999999998'
+ddsub480 subtract '0.4444444444444444' '-0.5555555555555553' -> '0.9999999999999997'
+ddsub481 subtract '0.4444444444444444' '-0.5555555555555552' -> '0.9999999999999996'
+ddsub482 subtract '0.4444444444444444' '-0.5555555555555551' -> '0.9999999999999995'
+ddsub483 subtract '0.4444444444444444' '-0.5555555555555550' -> '0.9999999999999994'
+
+-- and some more, including residue effects and different roundings
+rounding: half_up
+ddsub500 subtract '1231234567456789' 0 -> '1231234567456789'
+ddsub501 subtract '1231234567456789' 0.000000001 -> '1231234567456789' Inexact Rounded
+ddsub502 subtract '1231234567456789' 0.000001 -> '1231234567456789' Inexact Rounded
+ddsub503 subtract '1231234567456789' 0.1 -> '1231234567456789' Inexact Rounded
+ddsub504 subtract '1231234567456789' 0.4 -> '1231234567456789' Inexact Rounded
+ddsub505 subtract '1231234567456789' 0.49 -> '1231234567456789' Inexact Rounded
+ddsub506 subtract '1231234567456789' 0.499999 -> '1231234567456789' Inexact Rounded
+ddsub507 subtract '1231234567456789' 0.499999999 -> '1231234567456789' Inexact Rounded
+ddsub508 subtract '1231234567456789' 0.5 -> '1231234567456789' Inexact Rounded
+ddsub509 subtract '1231234567456789' 0.500000001 -> '1231234567456788' Inexact Rounded
+ddsub510 subtract '1231234567456789' 0.500001 -> '1231234567456788' Inexact Rounded
+ddsub511 subtract '1231234567456789' 0.51 -> '1231234567456788' Inexact Rounded
+ddsub512 subtract '1231234567456789' 0.6 -> '1231234567456788' Inexact Rounded
+ddsub513 subtract '1231234567456789' 0.9 -> '1231234567456788' Inexact Rounded
+ddsub514 subtract '1231234567456789' 0.99999 -> '1231234567456788' Inexact Rounded
+ddsub515 subtract '1231234567456789' 0.999999999 -> '1231234567456788' Inexact Rounded
+ddsub516 subtract '1231234567456789' 1 -> '1231234567456788'
+ddsub517 subtract '1231234567456789' 1.000000001 -> '1231234567456788' Inexact Rounded
+ddsub518 subtract '1231234567456789' 1.00001 -> '1231234567456788' Inexact Rounded
+ddsub519 subtract '1231234567456789' 1.1 -> '1231234567456788' Inexact Rounded
+
+rounding: half_even
+ddsub520 subtract '1231234567456789' 0 -> '1231234567456789'
+ddsub521 subtract '1231234567456789' 0.000000001 -> '1231234567456789' Inexact Rounded
+ddsub522 subtract '1231234567456789' 0.000001 -> '1231234567456789' Inexact Rounded
+ddsub523 subtract '1231234567456789' 0.1 -> '1231234567456789' Inexact Rounded
+ddsub524 subtract '1231234567456789' 0.4 -> '1231234567456789' Inexact Rounded
+ddsub525 subtract '1231234567456789' 0.49 -> '1231234567456789' Inexact Rounded
+ddsub526 subtract '1231234567456789' 0.499999 -> '1231234567456789' Inexact Rounded
+ddsub527 subtract '1231234567456789' 0.499999999 -> '1231234567456789' Inexact Rounded
+ddsub528 subtract '1231234567456789' 0.5 -> '1231234567456788' Inexact Rounded
+ddsub529 subtract '1231234567456789' 0.500000001 -> '1231234567456788' Inexact Rounded
+ddsub530 subtract '1231234567456789' 0.500001 -> '1231234567456788' Inexact Rounded
+ddsub531 subtract '1231234567456789' 0.51 -> '1231234567456788' Inexact Rounded
+ddsub532 subtract '1231234567456789' 0.6 -> '1231234567456788' Inexact Rounded
+ddsub533 subtract '1231234567456789' 0.9 -> '1231234567456788' Inexact Rounded
+ddsub534 subtract '1231234567456789' 0.99999 -> '1231234567456788' Inexact Rounded
+ddsub535 subtract '1231234567456789' 0.999999999 -> '1231234567456788' Inexact Rounded
+ddsub536 subtract '1231234567456789' 1 -> '1231234567456788'
+ddsub537 subtract '1231234567456789' 1.00000001 -> '1231234567456788' Inexact Rounded
+ddsub538 subtract '1231234567456789' 1.00001 -> '1231234567456788' Inexact Rounded
+ddsub539 subtract '1231234567456789' 1.1 -> '1231234567456788' Inexact Rounded
+-- critical few with even bottom digit...
+ddsub540 subtract '1231234567456788' 0.499999999 -> '1231234567456788' Inexact Rounded
+ddsub541 subtract '1231234567456788' 0.5 -> '1231234567456788' Inexact Rounded
+ddsub542 subtract '1231234567456788' 0.500000001 -> '1231234567456787' Inexact Rounded
+
+rounding: down
+ddsub550 subtract '1231234567456789' 0 -> '1231234567456789'
+ddsub551 subtract '1231234567456789' 0.000000001 -> '1231234567456788' Inexact Rounded
+ddsub552 subtract '1231234567456789' 0.000001 -> '1231234567456788' Inexact Rounded
+ddsub553 subtract '1231234567456789' 0.1 -> '1231234567456788' Inexact Rounded
+ddsub554 subtract '1231234567456789' 0.4 -> '1231234567456788' Inexact Rounded
+ddsub555 subtract '1231234567456789' 0.49 -> '1231234567456788' Inexact Rounded
+ddsub556 subtract '1231234567456789' 0.499999 -> '1231234567456788' Inexact Rounded
+ddsub557 subtract '1231234567456789' 0.499999999 -> '1231234567456788' Inexact Rounded
+ddsub558 subtract '1231234567456789' 0.5 -> '1231234567456788' Inexact Rounded
+ddsub559 subtract '1231234567456789' 0.500000001 -> '1231234567456788' Inexact Rounded
+ddsub560 subtract '1231234567456789' 0.500001 -> '1231234567456788' Inexact Rounded
+ddsub561 subtract '1231234567456789' 0.51 -> '1231234567456788' Inexact Rounded
+ddsub562 subtract '1231234567456789' 0.6 -> '1231234567456788' Inexact Rounded
+ddsub563 subtract '1231234567456789' 0.9 -> '1231234567456788' Inexact Rounded
+ddsub564 subtract '1231234567456789' 0.99999 -> '1231234567456788' Inexact Rounded
+ddsub565 subtract '1231234567456789' 0.999999999 -> '1231234567456788' Inexact Rounded
+ddsub566 subtract '1231234567456789' 1 -> '1231234567456788'
+ddsub567 subtract '1231234567456789' 1.00000001 -> '1231234567456787' Inexact Rounded
+ddsub568 subtract '1231234567456789' 1.00001 -> '1231234567456787' Inexact Rounded
+ddsub569 subtract '1231234567456789' 1.1 -> '1231234567456787' Inexact Rounded
+
+-- symmetry...
+rounding: half_up
+ddsub600 subtract 0 '1231234567456789' -> '-1231234567456789'
+ddsub601 subtract 0.000000001 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub602 subtract 0.000001 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub603 subtract 0.1 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub604 subtract 0.4 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub605 subtract 0.49 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub606 subtract 0.499999 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub607 subtract 0.499999999 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub608 subtract 0.5 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub609 subtract 0.500000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub610 subtract 0.500001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub611 subtract 0.51 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub612 subtract 0.6 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub613 subtract 0.9 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub614 subtract 0.99999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub615 subtract 0.999999999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub616 subtract 1 '1231234567456789' -> '-1231234567456788'
+ddsub617 subtract 1.000000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub618 subtract 1.00001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub619 subtract 1.1 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+
+rounding: half_even
+ddsub620 subtract 0 '1231234567456789' -> '-1231234567456789'
+ddsub621 subtract 0.000000001 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub622 subtract 0.000001 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub623 subtract 0.1 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub624 subtract 0.4 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub625 subtract 0.49 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub626 subtract 0.499999 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub627 subtract 0.499999999 '1231234567456789' -> '-1231234567456789' Inexact Rounded
+ddsub628 subtract 0.5 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub629 subtract 0.500000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub630 subtract 0.500001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub631 subtract 0.51 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub632 subtract 0.6 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub633 subtract 0.9 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub634 subtract 0.99999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub635 subtract 0.999999999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub636 subtract 1 '1231234567456789' -> '-1231234567456788'
+ddsub637 subtract 1.00000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub638 subtract 1.00001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub639 subtract 1.1 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+-- critical few with even bottom digit...
+ddsub640 subtract 0.499999999 '1231234567456788' -> '-1231234567456788' Inexact Rounded
+ddsub641 subtract 0.5 '1231234567456788' -> '-1231234567456788' Inexact Rounded
+ddsub642 subtract 0.500000001 '1231234567456788' -> '-1231234567456787' Inexact Rounded
+
+rounding: down
+ddsub650 subtract 0 '1231234567456789' -> '-1231234567456789'
+ddsub651 subtract 0.000000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub652 subtract 0.000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub653 subtract 0.1 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub654 subtract 0.4 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub655 subtract 0.49 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub656 subtract 0.499999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub657 subtract 0.499999999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub658 subtract 0.5 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub659 subtract 0.500000001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub660 subtract 0.500001 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub661 subtract 0.51 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub662 subtract 0.6 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub663 subtract 0.9 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub664 subtract 0.99999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub665 subtract 0.999999999 '1231234567456789' -> '-1231234567456788' Inexact Rounded
+ddsub666 subtract 1 '1231234567456789' -> '-1231234567456788'
+ddsub667 subtract 1.00000001 '1231234567456789' -> '-1231234567456787' Inexact Rounded
+ddsub668 subtract 1.00001 '1231234567456789' -> '-1231234567456787' Inexact Rounded
+ddsub669 subtract 1.1 '1231234567456789' -> '-1231234567456787' Inexact Rounded
+
+
+-- lots of leading zeros in intermediate result, and showing effects of
+-- input rounding would have affected the following
+rounding: half_up
+ddsub670 subtract '1234567456789' '1234567456788.1' -> 0.9
+ddsub671 subtract '1234567456789' '1234567456788.9' -> 0.1
+ddsub672 subtract '1234567456789' '1234567456789.1' -> -0.1
+ddsub673 subtract '1234567456789' '1234567456789.5' -> -0.5
+ddsub674 subtract '1234567456789' '1234567456789.9' -> -0.9
+
+rounding: half_even
+ddsub680 subtract '1234567456789' '1234567456788.1' -> 0.9
+ddsub681 subtract '1234567456789' '1234567456788.9' -> 0.1
+ddsub682 subtract '1234567456789' '1234567456789.1' -> -0.1
+ddsub683 subtract '1234567456789' '1234567456789.5' -> -0.5
+ddsub684 subtract '1234567456789' '1234567456789.9' -> -0.9
+
+ddsub685 subtract '1234567456788' '1234567456787.1' -> 0.9
+ddsub686 subtract '1234567456788' '1234567456787.9' -> 0.1
+ddsub687 subtract '1234567456788' '1234567456788.1' -> -0.1
+ddsub688 subtract '1234567456788' '1234567456788.5' -> -0.5
+ddsub689 subtract '1234567456788' '1234567456788.9' -> -0.9
+
+rounding: down
+ddsub690 subtract '1234567456789' '1234567456788.1' -> 0.9
+ddsub691 subtract '1234567456789' '1234567456788.9' -> 0.1
+ddsub692 subtract '1234567456789' '1234567456789.1' -> -0.1
+ddsub693 subtract '1234567456789' '1234567456789.5' -> -0.5
+ddsub694 subtract '1234567456789' '1234567456789.9' -> -0.9
+
+-- Specials
+ddsub780 subtract -Inf Inf -> -Infinity
+ddsub781 subtract -Inf 1000 -> -Infinity
+ddsub782 subtract -Inf 1 -> -Infinity
+ddsub783 subtract -Inf -0 -> -Infinity
+ddsub784 subtract -Inf -1 -> -Infinity
+ddsub785 subtract -Inf -1000 -> -Infinity
+ddsub787 subtract -1000 Inf -> -Infinity
+ddsub788 subtract -Inf Inf -> -Infinity
+ddsub789 subtract -1 Inf -> -Infinity
+ddsub790 subtract 0 Inf -> -Infinity
+ddsub791 subtract 1 Inf -> -Infinity
+ddsub792 subtract 1000 Inf -> -Infinity
+
+ddsub800 subtract Inf Inf -> NaN Invalid_operation
+ddsub801 subtract Inf 1000 -> Infinity
+ddsub802 subtract Inf 1 -> Infinity
+ddsub803 subtract Inf 0 -> Infinity
+ddsub804 subtract Inf -0 -> Infinity
+ddsub805 subtract Inf -1 -> Infinity
+ddsub806 subtract Inf -1000 -> Infinity
+ddsub807 subtract Inf -Inf -> Infinity
+ddsub808 subtract -1000 -Inf -> Infinity
+ddsub809 subtract -Inf -Inf -> NaN Invalid_operation
+ddsub810 subtract -1 -Inf -> Infinity
+ddsub811 subtract -0 -Inf -> Infinity
+ddsub812 subtract 0 -Inf -> Infinity
+ddsub813 subtract 1 -Inf -> Infinity
+ddsub814 subtract 1000 -Inf -> Infinity
+ddsub815 subtract Inf -Inf -> Infinity
+
+ddsub821 subtract NaN Inf -> NaN
+ddsub822 subtract -NaN 1000 -> -NaN
+ddsub823 subtract NaN 1 -> NaN
+ddsub824 subtract NaN 0 -> NaN
+ddsub825 subtract NaN -0 -> NaN
+ddsub826 subtract NaN -1 -> NaN
+ddsub827 subtract NaN -1000 -> NaN
+ddsub828 subtract NaN -Inf -> NaN
+ddsub829 subtract -NaN NaN -> -NaN
+ddsub830 subtract -Inf NaN -> NaN
+ddsub831 subtract -1000 NaN -> NaN
+ddsub832 subtract -1 NaN -> NaN
+ddsub833 subtract -0 NaN -> NaN
+ddsub834 subtract 0 NaN -> NaN
+ddsub835 subtract 1 NaN -> NaN
+ddsub836 subtract 1000 -NaN -> -NaN
+ddsub837 subtract Inf NaN -> NaN
+
+ddsub841 subtract sNaN Inf -> NaN Invalid_operation
+ddsub842 subtract -sNaN 1000 -> -NaN Invalid_operation
+ddsub843 subtract sNaN 1 -> NaN Invalid_operation
+ddsub844 subtract sNaN 0 -> NaN Invalid_operation
+ddsub845 subtract sNaN -0 -> NaN Invalid_operation
+ddsub846 subtract sNaN -1 -> NaN Invalid_operation
+ddsub847 subtract sNaN -1000 -> NaN Invalid_operation
+ddsub848 subtract sNaN NaN -> NaN Invalid_operation
+ddsub849 subtract sNaN sNaN -> NaN Invalid_operation
+ddsub850 subtract NaN sNaN -> NaN Invalid_operation
+ddsub851 subtract -Inf -sNaN -> -NaN Invalid_operation
+ddsub852 subtract -1000 sNaN -> NaN Invalid_operation
+ddsub853 subtract -1 sNaN -> NaN Invalid_operation
+ddsub854 subtract -0 sNaN -> NaN Invalid_operation
+ddsub855 subtract 0 sNaN -> NaN Invalid_operation
+ddsub856 subtract 1 sNaN -> NaN Invalid_operation
+ddsub857 subtract 1000 sNaN -> NaN Invalid_operation
+ddsub858 subtract Inf sNaN -> NaN Invalid_operation
+ddsub859 subtract NaN sNaN -> NaN Invalid_operation
+
+-- propagating NaNs
+ddsub861 subtract NaN01 -Inf -> NaN1
+ddsub862 subtract -NaN02 -1000 -> -NaN2
+ddsub863 subtract NaN03 1000 -> NaN3
+ddsub864 subtract NaN04 Inf -> NaN4
+ddsub865 subtract NaN05 NaN61 -> NaN5
+ddsub866 subtract -Inf -NaN71 -> -NaN71
+ddsub867 subtract -1000 NaN81 -> NaN81
+ddsub868 subtract 1000 NaN91 -> NaN91
+ddsub869 subtract Inf NaN101 -> NaN101
+ddsub871 subtract sNaN011 -Inf -> NaN11 Invalid_operation
+ddsub872 subtract sNaN012 -1000 -> NaN12 Invalid_operation
+ddsub873 subtract -sNaN013 1000 -> -NaN13 Invalid_operation
+ddsub874 subtract sNaN014 NaN171 -> NaN14 Invalid_operation
+ddsub875 subtract sNaN015 sNaN181 -> NaN15 Invalid_operation
+ddsub876 subtract NaN016 sNaN191 -> NaN191 Invalid_operation
+ddsub877 subtract -Inf sNaN201 -> NaN201 Invalid_operation
+ddsub878 subtract -1000 sNaN211 -> NaN211 Invalid_operation
+ddsub879 subtract 1000 -sNaN221 -> -NaN221 Invalid_operation
+ddsub880 subtract Inf sNaN231 -> NaN231 Invalid_operation
+ddsub881 subtract NaN025 sNaN241 -> NaN241 Invalid_operation
+
+-- edge case spills
+ddsub901 subtract 2.E-3 1.002 -> -1.000
+ddsub902 subtract 2.0E-3 1.002 -> -1.0000
+ddsub903 subtract 2.00E-3 1.0020 -> -1.00000
+ddsub904 subtract 2.000E-3 1.00200 -> -1.000000
+ddsub905 subtract 2.0000E-3 1.002000 -> -1.0000000
+ddsub906 subtract 2.00000E-3 1.0020000 -> -1.00000000
+ddsub907 subtract 2.000000E-3 1.00200000 -> -1.000000000
+ddsub908 subtract 2.0000000E-3 1.002000000 -> -1.0000000000
+
+-- subnormals and overflows covered under Add
+
+-- Null tests
+ddsub9990 subtract 10 # -> NaN Invalid_operation
+ddsub9991 subtract # 10 -> NaN Invalid_operation