cpython/Lib/test/decimaltestdata/ddPlus.decTest

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------------------------------------------------------------------------
-- ddPlus.decTest -- decDouble 0+x --
-- 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
-- All operands and results are decDoubles.
precision: 16
maxExponent: 384
minExponent: -383
extended: 1
clamp: 1
rounding: half_even
-- Sanity check
ddpls001 plus +7.50 -> 7.50
-- Infinities
ddpls011 plus Infinity -> Infinity
ddpls012 plus -Infinity -> -Infinity
-- NaNs, 0 payload
ddpls021 plus NaN -> NaN
ddpls022 plus -NaN -> -NaN
ddpls023 plus sNaN -> NaN Invalid_operation
ddpls024 plus -sNaN -> -NaN Invalid_operation
-- NaNs, non-0 payload
ddpls031 plus NaN13 -> NaN13
ddpls032 plus -NaN13 -> -NaN13
ddpls033 plus sNaN13 -> NaN13 Invalid_operation
ddpls034 plus -sNaN13 -> -NaN13 Invalid_operation
ddpls035 plus NaN70 -> NaN70
ddpls036 plus -NaN70 -> -NaN70
ddpls037 plus sNaN101 -> NaN101 Invalid_operation
ddpls038 plus -sNaN101 -> -NaN101 Invalid_operation
-- finites
ddpls101 plus 7 -> 7
ddpls102 plus -7 -> -7
ddpls103 plus 75 -> 75
ddpls104 plus -75 -> -75
ddpls105 plus 7.50 -> 7.50
ddpls106 plus -7.50 -> -7.50
ddpls107 plus 7.500 -> 7.500
ddpls108 plus -7.500 -> -7.500
-- zeros
ddpls111 plus 0 -> 0
ddpls112 plus -0 -> 0
ddpls113 plus 0E+4 -> 0E+4
ddpls114 plus -0E+4 -> 0E+4
ddpls115 plus 0.0000 -> 0.0000
ddpls116 plus -0.0000 -> 0.0000
ddpls117 plus 0E-141 -> 0E-141
ddpls118 plus -0E-141 -> 0E-141
-- full coefficients, alternating bits
ddpls121 plus 2682682682682682 -> 2682682682682682
ddpls122 plus -2682682682682682 -> -2682682682682682
ddpls123 plus 1341341341341341 -> 1341341341341341
ddpls124 plus -1341341341341341 -> -1341341341341341
-- Nmax, Nmin, Ntiny
ddpls131 plus 9.999999999999999E+384 -> 9.999999999999999E+384
ddpls132 plus 1E-383 -> 1E-383
ddpls133 plus 1.000000000000000E-383 -> 1.000000000000000E-383
ddpls134 plus 1E-398 -> 1E-398 Subnormal
ddpls135 plus -1E-398 -> -1E-398 Subnormal
ddpls136 plus -1.000000000000000E-383 -> -1.000000000000000E-383
ddpls137 plus -1E-383 -> -1E-383
ddpls138 plus -9.999999999999999E+384 -> -9.999999999999999E+384