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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
| 0006873 | [Squeak] Kernel | minor | always | 01-25-08 21:44 | 04-18-10 22:05 | ||||
| Reporter | nicolas cellier | View Status | public | ||||||
| Assigned To | andreas | ||||||||
| Priority | normal | Resolution | fixed | ||||||
| Status | closed | Product Version | |||||||
| Summary | 0006873: [BUG] isPowerOfTwo incorrect for some LargeNegativeInteger | ||||||||
| Description |
negative SmallInteger are never powers of two. So far, so good. neither should LargeNegativeInteger be. Unfortunately some will answer true to isPowerOfTwo, like: (31 to: 111 by: 8) allSatisfy: [:n | (2 raisedTo: n) negated isPowerOfTwo] Just too bad... One more case of algorithm correct in restricted area but not in general case... |
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| Additional Information |
Cure is easy, override isPowerOfTwo in LargeNegativeInteger to simply ^false |
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| Attached Files |
 isPowerOfTwo-Test-M6873-nice.1.cs [^] (732 bytes) 01-25-08 22:00 isPowerOfTwo-Patch-M6873-nice.1.cs [^] (588 bytes) 01-25-08 22:00 |
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Notes |
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(0011711 - 173 - 227 - 227 - 227 - 227 - 227) nicolas cellier 01-25-08 22:05 |
"fix begin" Installer mantis bug: 6873 fix:'isPowerOfTwo-Patch-M6873-nice.1.cs'. "fix test" Installer mantis bug: 6873 fix:'isPowerOfTwo-Test-M6873-nice.1.cs'. "fix end" |
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(0011712 - 198 - 234 - 234 - 318 - 318 - 318) nicolas cellier 01-26-08 00:07 edited on: 01-26-08 01:57 |
Now i think algorithm was correct. What is incorrect is #bitAnd: implemented in #digitLogic:op:length: So my patch is only a workaround against a symptom... forget the patch and look at 0006874 |
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(0011715 - 138 - 192 - 192 - 192 - 192 - 192) nicolas cellier 01-26-08 01:55 |
"fix begin" Installer mantis ensureFix: 6874. "fix test" Installer mantis bug: 6873 fix:'isPowerOfTwo-Test-M6873-nice.1.cs'. "fix end" |
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(0013317 - 39 - 39 - 39 - 123 - 123 - 123) nicolas cellier 09-19-09 21:10 |
This has been fixed in trunk with 0006874 |
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Issue History |
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| Date Modified | Username | Field | Change |
| 01-25-08 21:44 | nicolas cellier | New Issue | |
| 01-25-08 22:00 | nicolas cellier | File Added: isPowerOfTwo-Test-M6873-nice.1.cs | |
| 01-25-08 22:00 | nicolas cellier | File Added: isPowerOfTwo-Patch-M6873-nice.1.cs | |
| 01-25-08 22:05 | nicolas cellier | Note Added: 0011711 | |
| 01-26-08 00:07 | nicolas cellier | Note Added: 0011712 | |
| 01-26-08 01:55 | nicolas cellier | Note Added: 0011715 | |
| 01-26-08 01:57 | nicolas cellier | Note Edited: 0011712 | |
| 01-10-09 02:00 | Keith_Hodges | Status | new => pending |
| 01-10-09 03:32 | Keith_Hodges | Status | pending => testing |
| 01-10-09 03:39 | Keith_Hodges | Status | testing => resolved |
| 01-10-09 03:39 | Keith_Hodges | Fixed in Version | => 3.11 |
| 01-10-09 03:39 | Keith_Hodges | Resolution | open => fixed |
| 01-10-09 03:39 | Keith_Hodges | Assigned To | => Keith_Hodges |
| 01-10-09 03:41 | Keith_Hodges | Status | resolved => testing |
| 09-19-09 21:10 | nicolas cellier | Note Added: 0013317 | |
| 10-03-09 19:33 | Keith_Hodges | Status | testing => assigned |
| 10-03-09 19:33 | Keith_Hodges | Assigned To | Keith_Hodges => andreas |
| 10-03-09 20:10 | nicolas cellier | Relationship added | related to 0006874 |
| 10-03-09 20:11 | nicolas cellier | Status | assigned => resolved |
| 10-03-09 20:11 | nicolas cellier | Fixed in Version | 3.11 => trunk |
| 04-18-10 22:05 | andreas | Status | resolved => closed |
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