mirror of https://github.com/python/cpython
212 lines
11 KiB
Plaintext
212 lines
11 KiB
Plaintext
------------------------------------------------------------------------
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-- clamp.decTest -- clamped exponent tests (format-independent) --
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-- Copyright (c) IBM Corporation, 2000, 2007. 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: 2.56
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-- This set of tests uses the same limits as the 8-byte concrete
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-- representation, but applies clamping without using format-specific
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-- conversions.
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extended: 1
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precision: 16
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rounding: half_even
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maxExponent: 384
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minExponent: -383
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clamp: 1
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-- General testcases
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-- Normality
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clam010 apply 1234567890123456 -> 1234567890123456
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clam011 apply 1234567890123456.0 -> 1234567890123456 Rounded
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clam012 apply 1234567890123456.1 -> 1234567890123456 Rounded Inexact
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clam013 apply -1234567890123456 -> -1234567890123456
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clam014 apply -1234567890123456.0 -> -1234567890123456 Rounded
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clam015 apply -1234567890123456.1 -> -1234567890123456 Rounded Inexact
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-- Nmax and similar
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clam022 apply 9.999999999999999E+384 -> 9.999999999999999E+384
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clam024 apply 1.234567890123456E+384 -> 1.234567890123456E+384
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-- fold-downs (more below)
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clam030 apply 1.23E+384 -> 1.230000000000000E+384 Clamped
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clam032 apply 1E+384 -> 1.000000000000000E+384 Clamped
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clam051 apply 12345 -> 12345
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clam053 apply 1234 -> 1234
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clam055 apply 123 -> 123
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clam057 apply 12 -> 12
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clam059 apply 1 -> 1
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clam061 apply 1.23 -> 1.23
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clam063 apply 123.45 -> 123.45
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-- Nmin and below
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clam071 apply 1E-383 -> 1E-383
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clam073 apply 1.000000000000000E-383 -> 1.000000000000000E-383
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clam075 apply 1.000000000000001E-383 -> 1.000000000000001E-383
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clam077 apply 0.100000000000000E-383 -> 1.00000000000000E-384 Subnormal
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clam079 apply 0.000000000000010E-383 -> 1.0E-397 Subnormal
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clam081 apply 0.00000000000001E-383 -> 1E-397 Subnormal
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clam083 apply 0.000000000000001E-383 -> 1E-398 Subnormal
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-- underflows
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clam090 apply 1e-398 -> #0000000000000001 Subnormal
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clam091 apply 1.9e-398 -> #0000000000000002 Subnormal Underflow Inexact Rounded
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clam092 apply 1.1e-398 -> #0000000000000001 Subnormal Underflow Inexact Rounded
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clam093 apply 1.00000000001e-398 -> #0000000000000001 Subnormal Underflow Inexact Rounded
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clam094 apply 1.00000000000001e-398 -> #0000000000000001 Subnormal Underflow Inexact Rounded
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clam095 apply 1.000000000000001e-398 -> #0000000000000001 Subnormal Underflow Inexact Rounded
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clam096 apply 0.1e-398 -> #0000000000000000 Subnormal Underflow Inexact Rounded Clamped
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clam097 apply 0.00000000001e-398 -> #0000000000000000 Subnormal Underflow Inexact Rounded Clamped
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clam098 apply 0.00000000000001e-398 -> #0000000000000000 Subnormal Underflow Inexact Rounded Clamped
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clam099 apply 0.000000000000001e-398 -> #0000000000000000 Subnormal Underflow Inexact Rounded Clamped
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-- Same again, negatives
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-- Nmax and similar
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clam122 apply -9.999999999999999E+384 -> -9.999999999999999E+384
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clam124 apply -1.234567890123456E+384 -> -1.234567890123456E+384
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-- fold-downs (more below)
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clam130 apply -1.23E+384 -> -1.230000000000000E+384 Clamped
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clam132 apply -1E+384 -> -1.000000000000000E+384 Clamped
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clam151 apply -12345 -> -12345
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clam153 apply -1234 -> -1234
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clam155 apply -123 -> -123
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clam157 apply -12 -> -12
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clam159 apply -1 -> -1
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clam161 apply -1.23 -> -1.23
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clam163 apply -123.45 -> -123.45
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-- Nmin and below
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clam171 apply -1E-383 -> -1E-383
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clam173 apply -1.000000000000000E-383 -> -1.000000000000000E-383
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clam175 apply -1.000000000000001E-383 -> -1.000000000000001E-383
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clam177 apply -0.100000000000000E-383 -> -1.00000000000000E-384 Subnormal
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clam179 apply -0.000000000000010E-383 -> -1.0E-397 Subnormal
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clam181 apply -0.00000000000001E-383 -> -1E-397 Subnormal
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clam183 apply -0.000000000000001E-383 -> -1E-398 Subnormal
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-- underflows
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clam189 apply -1e-398 -> #8000000000000001 Subnormal
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clam190 apply -1.0e-398 -> #8000000000000001 Subnormal Rounded
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clam191 apply -1.9e-398 -> #8000000000000002 Subnormal Underflow Inexact Rounded
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clam192 apply -1.1e-398 -> #8000000000000001 Subnormal Underflow Inexact Rounded
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clam193 apply -1.00000000001e-398 -> #8000000000000001 Subnormal Underflow Inexact Rounded
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clam194 apply -1.00000000000001e-398 -> #8000000000000001 Subnormal Underflow Inexact Rounded
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clam195 apply -1.000000000000001e-398 -> #8000000000000001 Subnormal Underflow Inexact Rounded
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clam196 apply -0.1e-398 -> #8000000000000000 Subnormal Underflow Inexact Rounded Clamped
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clam197 apply -0.00000000001e-398 -> #8000000000000000 Subnormal Underflow Inexact Rounded Clamped
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clam198 apply -0.00000000000001e-398 -> #8000000000000000 Subnormal Underflow Inexact Rounded Clamped
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clam199 apply -0.000000000000001e-398 -> #8000000000000000 Subnormal Underflow Inexact Rounded Clamped
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-- zeros
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clam401 apply 0E-500 -> 0E-398 Clamped
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clam402 apply 0E-400 -> 0E-398 Clamped
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clam403 apply 0E-398 -> 0E-398
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clam404 apply 0.000000000000000E-383 -> 0E-398
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clam405 apply 0E-2 -> 0.00
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clam406 apply 0 -> 0
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clam407 apply 0E+3 -> 0E+3
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clam408 apply 0E+369 -> 0E+369
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-- clamped zeros...
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clam410 apply 0E+370 -> 0E+369 Clamped
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clam411 apply 0E+384 -> 0E+369 Clamped
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clam412 apply 0E+400 -> 0E+369 Clamped
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clam413 apply 0E+500 -> 0E+369 Clamped
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-- negative zeros
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clam420 apply -0E-500 -> -0E-398 Clamped
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clam421 apply -0E-400 -> -0E-398 Clamped
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clam422 apply -0E-398 -> -0E-398
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clam423 apply -0.000000000000000E-383 -> -0E-398
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clam424 apply -0E-2 -> -0.00
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clam425 apply -0 -> -0
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clam426 apply -0E+3 -> -0E+3
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clam427 apply -0E+369 -> -0E+369
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-- clamped zeros...
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clam431 apply -0E+370 -> -0E+369 Clamped
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clam432 apply -0E+384 -> -0E+369 Clamped
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clam433 apply -0E+400 -> -0E+369 Clamped
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clam434 apply -0E+500 -> -0E+369 Clamped
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-- fold-down full sequence
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clam601 apply 1E+384 -> 1.000000000000000E+384 Clamped
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clam603 apply 1E+383 -> 1.00000000000000E+383 Clamped
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clam605 apply 1E+382 -> 1.0000000000000E+382 Clamped
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clam607 apply 1E+381 -> 1.000000000000E+381 Clamped
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clam609 apply 1E+380 -> 1.00000000000E+380 Clamped
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clam611 apply 1E+379 -> 1.0000000000E+379 Clamped
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clam613 apply 1E+378 -> 1.000000000E+378 Clamped
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clam615 apply 1E+377 -> 1.00000000E+377 Clamped
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clam617 apply 1E+376 -> 1.0000000E+376 Clamped
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clam619 apply 1E+375 -> 1.000000E+375 Clamped
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clam621 apply 1E+374 -> 1.00000E+374 Clamped
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clam623 apply 1E+373 -> 1.0000E+373 Clamped
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clam625 apply 1E+372 -> 1.000E+372 Clamped
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clam627 apply 1E+371 -> 1.00E+371 Clamped
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clam629 apply 1E+370 -> 1.0E+370 Clamped
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clam631 apply 1E+369 -> 1E+369
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clam633 apply 1E+368 -> 1E+368
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-- same with 9s
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clam641 apply 9E+384 -> 9.000000000000000E+384 Clamped
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clam643 apply 9E+383 -> 9.00000000000000E+383 Clamped
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clam645 apply 9E+382 -> 9.0000000000000E+382 Clamped
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clam647 apply 9E+381 -> 9.000000000000E+381 Clamped
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clam649 apply 9E+380 -> 9.00000000000E+380 Clamped
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clam651 apply 9E+379 -> 9.0000000000E+379 Clamped
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clam653 apply 9E+378 -> 9.000000000E+378 Clamped
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clam655 apply 9E+377 -> 9.00000000E+377 Clamped
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clam657 apply 9E+376 -> 9.0000000E+376 Clamped
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clam659 apply 9E+375 -> 9.000000E+375 Clamped
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clam661 apply 9E+374 -> 9.00000E+374 Clamped
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clam663 apply 9E+373 -> 9.0000E+373 Clamped
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clam665 apply 9E+372 -> 9.000E+372 Clamped
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clam667 apply 9E+371 -> 9.00E+371 Clamped
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clam669 apply 9E+370 -> 9.0E+370 Clamped
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clam671 apply 9E+369 -> 9E+369
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clam673 apply 9E+368 -> 9E+368
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-- subnormals clamped to 0-Etiny
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precision: 16
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maxExponent: 384
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minExponent: -383
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clam681 apply 7E-398 -> 7E-398 Subnormal
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clam682 apply 0E-398 -> 0E-398
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clam683 apply 7E-399 -> 1E-398 Subnormal Underflow Inexact Rounded
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clam684 apply 4E-399 -> 0E-398 Clamped Subnormal Underflow Inexact Rounded
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clam685 apply 7E-400 -> 0E-398 Clamped Subnormal Underflow Inexact Rounded
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clam686 apply 7E-401 -> 0E-398 Clamped Subnormal Underflow Inexact Rounded
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clam687 apply 0E-399 -> 0E-398 Clamped
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clam688 apply 0E-400 -> 0E-398 Clamped
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clam689 apply 0E-401 -> 0E-398 Clamped
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-- example from documentation
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precision: 7
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rounding: half_even
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maxExponent: +96
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minExponent: -95
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clamp: 0
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clam700 apply 1.23E+96 -> 1.23E+96
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clamp: 1
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clam701 apply 1.23E+96 -> 1.230000E+96 Clamped
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