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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
| 0006982 | [Squeak] Kernel | minor | always | 03-14-08 22:31 | 04-18-10 21:58 | ||||
| Reporter | nicolas cellier | View Status | public | ||||||
| Assigned To | nicolas cellier | ||||||||
| Priority | normal | Resolution | fixed | ||||||
| Status | closed | Product Version | 3.10 | ||||||
| Summary | 0006982: Number>>readFrom: does not handle many digits correctly | ||||||||
| Description |
It incorrectly answer an Infinity or even a NaN in some cases: | s1 s2 | s1 := '0.' , (String new: 320 withAll: $0) , '1e321'. s2 := '1' , (String new: 321 withAll: $0) , '.0e321'. self assert: (Number readFrom: s1) = 1. self assert: (Number readFrom: s2) = 1. "First is Infinity, second is NaN..." self assert: (SqNumberParser readFrom: s1) = 1. self assert: (SqNumberParser readFrom: s2) = 1. It seems it would be time to connect SqNumberParser... Beside, SqNumberParser answer nearest Float. |
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| Additional Information | |||||||||
| Attached Files |
 Float-readFromManyDigits-Test-M6982-nice.1.cs [^] (786 bytes) 03-15-08 00:06 Float-readFromManyDigits-Patch-M6982-nice.1.cs [^] (6,067 bytes) 03-15-08 00:11 Float-initialize-Patch-M6982-nice.1.cs [^] (1,570 bytes) 03-15-08 21:55 Float-readFromManyDigits-Patch-M6982-nice.2.cs [^] (4,571 bytes) 08-31-08 00:33 |
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(0011922 - 362 - 416 - 416 - 416 - 416 - 416) nicolas cellier 03-14-08 22:34 |
Hem, i'm just bad at copy/paste game... correct test is below: | s1 s2 | s1 := '1' , (String new: 321 withAll: $0) , '.0e-321'. s2 := '0.' , (String new: 320 withAll: $0) , '1e321'. self assert: (Number readFrom: s1) = 1. self assert: (Number readFrom: s2) = 1. self assert: (SqNumberParser parse: s1) = 1. self assert: (SqNumberParser parse: s2) = 1. |
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(0011925 - 248 - 272 - 272 - 659 - 659 - 659) nicolas cellier 03-15-08 00:16 |
Beware, the patch is not compatible with the old behaviour of answering 0 when there is no digit. It raise an Error instead. Use (Number readFrom aStream ifFail: [0]) explicitely if interested in this feature. See also 0003512 0006779 0006976 0003712 |
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(0011928 - 325 - 419 - 419 - 419 - 419 - 419) nicolas cellier 03-15-08 21:56 |
If Number readFrom: is modified to use SqNumberParser, then the constant used to initialize MaxVal is too high, and leads to an Infinity if recompiled. So here comes patch Float-initialize-Patch-M6982-nice.1.cs new and old values are respectively: MaxVal _ 1.7976931348623157e308. MaxVal _ 1.7976931348623159e308. |
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(0012163 - 271 - 331 - 331 - 331 - 331 - 331) nicolas cellier 05-25-08 18:38 |
"fix begin" Installer mantis bug: 6982 fix:'Float-readFromManyDigits-Patch-M6982-nice.1.cs'. Installer mantis bug: 6982 fix:'Float-initialize-Patch-M6982-nice.1.cs'. "fix test" Installer mantis bug: 6982 fix:'Float-readFromManyDigits-Test-M6982-nice.1.cs'. "fix end" |
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(0012543 - 308 - 386 - 386 - 386 - 386 - 386) nicolas cellier 08-29-08 20:13 edited on: 08-31-08 00:33 |
"fix begin" Installer mantis ensureFix: 7169. Installer mantis bug: 6982 fix:'Float-readFromManyDigits-Patch-M6982-nice.1.cs'. Installer mantis bug: 6982 fix:'Float-initialize-Patch-M6982-nice.2.cs'. "fix test" Installer mantis bug: 6982 fix:'Float-readFromManyDigits-Test-M6982-nice.1.cs'. "fix end" |
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(0012554 - 261 - 349 - 349 - 349 - 349 - 349) nicolas cellier 08-31-08 00:36 |
There was a stupid bug instVar = ... instead of instVar := ... in Float-readFromManyDigits-Patch-M6982-nice.1.cs Rather use Float-readFromManyDigits-Patch-M6982-nice.2.cs instead. He, the leftArrow would be welcome to avoid this kind of typo. |
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(0013509 - 114 - 120 - 430 - 430 - 430 - 430) nicolas cellier 02-13-10 02:06 |
in http://source.squeak.org/trunk/Kernel-nice.396.mcz [^] and http://source.squeak.org/trunk/KernelTests-nice.131.mcz [^] |
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Issue History |
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| Date Modified | Username | Field | Change |
| 03-14-08 22:31 | nicolas cellier | New Issue | |
| 03-14-08 22:34 | nicolas cellier | Note Added: 0011922 | |
| 03-15-08 00:06 | nicolas cellier | File Added: Float-readFromManyDigits-Test-M6982-nice.1.cs | |
| 03-15-08 00:11 | nicolas cellier | File Added: Float-readFromManyDigits-Patch-M6982-nice.1.cs | |
| 03-15-08 00:16 | nicolas cellier | Note Added: 0011925 | |
| 03-15-08 21:55 | nicolas cellier | File Added: Float-initialize-Patch-M6982-nice.1.cs | |
| 03-15-08 21:56 | nicolas cellier | Note Added: 0011928 | |
| 05-25-08 18:38 | nicolas cellier | Note Added: 0012163 | |
| 08-29-08 20:13 | nicolas cellier | Note Added: 0012543 | |
| 08-31-08 00:33 | nicolas cellier | File Added: Float-readFromManyDigits-Patch-M6982-nice.2.cs | |
| 08-31-08 00:33 | nicolas cellier | Note Edited: 0012543 | |
| 08-31-08 00:36 | nicolas cellier | Note Added: 0012554 | |
| 01-10-09 02:13 | Keith_Hodges | Status | new => pending |
| 02-13-10 02:06 | nicolas cellier | Status | pending => resolved |
| 02-13-10 02:06 | nicolas cellier | Fixed in Version | => trunk |
| 02-13-10 02:06 | nicolas cellier | Resolution | open => fixed |
| 02-13-10 02:06 | nicolas cellier | Assigned To | => nicolas cellier |
| 02-13-10 02:06 | nicolas cellier | Note Added: 0013509 | |
| 04-18-10 21:58 | andreas | Status | resolved => closed |
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