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| ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
| 0006985 | [Squeak] Kernel | feature | N/A | 03-20-08 23:17 | 04-18-10 22:04 | ||||
| Reporter | nicolas cellier | View Status | public | ||||||
| Assigned To | nicolas cellier | ||||||||
| Priority | normal | Resolution | fixed | ||||||
| Status | closed | Product Version | 3.10 | ||||||
| Summary | 0006985: [NEW FEATURE] Integer bitAt: | ||||||||
| Description |
This is a simple feature that is missing: bitAt: n answers 1 if nth bit is 1, 0 otherwise. Negatives act as two complements, also LargeNegativeInteger. |
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| Additional Information |
I propose a naive version in Integer, optimized in subclasses. |
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| Attached Files |
 Integer_bitAt_M6985-nice.1.cs [^] (3,058 bytes) 03-21-08 00:03 Integer_bitAt_Test_M6985-nice.1.cs [^] (1,763 bytes) 03-21-08 00:03 Integer_bitAt_M6985-nice.2.cs [^] (2,312 bytes) 03-21-08 20:51 Integer-raisedTo-modulo-speedUp-M7120-nice.1.cs [^] (3,078 bytes) 07-12-08 00:38 |
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Notes |
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(0011943 - 171 - 237 - 237 - 237 - 237 - 237) nicolas cellier 03-21-08 00:10 edited on: 04-06-08 17:05 |
"fix begin" Installer mantis bug: 6985 fix:'Integer_bitAt_M6985-nice.1.cs'. "fix test" Installer mantis bug: 6985 fix:'Integer_bitAt_Test_M6985-nice.1.cs'. "fix end" |
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(0011944 - 140 - 164 - 164 - 164 - 164 - 164) bonzini 03-21-08 08:31 |
If you write the Integer version as (self bitShift: 1 - anInteger) bitAnd: 1 then you can avoid overriding the method in SmallInteger. |
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(0011947 - 200 - 288 - 288 - 288 - 288 - 288) nicolas cellier 03-21-08 20:53 edited on: 07-08-08 01:43 |
"Ah yes, better. Thanks!" "fix begin" Installer mantis bug: 6985 fix:'Integer_bitAt_M6985-nice.2.cs'. "fix test" Installer mantis bug: 6985 fix:'Integer_bitAt_Test_M6985-nice.1.cs'. "fix end" |
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(0013358 - 119 - 125 - 433 - 433 - 433 - 433) nicolas cellier 10-06-09 10:25 |
Fixed in http://source.squeak.org/trunk/Kernel-nice.262.mcz [^] and http://source.squeak.org/trunk/KernelTests-nice.99.mcz [^] |
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Issue History |
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| Date Modified | Username | Field | Change |
| 03-20-08 23:17 | nicolas cellier | New Issue | |
| 03-21-08 00:03 | nicolas cellier | File Added: Integer_bitAt_M6985-nice.1.cs | |
| 03-21-08 00:03 | nicolas cellier | File Added: Integer_bitAt_Test_M6985-nice.1.cs | |
| 03-21-08 00:10 | nicolas cellier | Note Added: 0011943 | |
| 03-21-08 08:31 | bonzini | Note Added: 0011944 | |
| 03-21-08 20:51 | nicolas cellier | File Added: Integer_bitAt_M6985-nice.2.cs | |
| 03-21-08 20:53 | nicolas cellier | Note Added: 0011947 | |
| 04-06-08 17:05 | nicolas cellier | Note Edited: 0011947 | |
| 04-06-08 17:05 | nicolas cellier | Note Edited: 0011943 | |
| 07-08-08 01:43 | nicolas cellier | Note Edited: 0011947 | |
| 07-12-08 00:38 | nicolas cellier | File Added: Integer-raisedTo-modulo-speedUp-M7120-nice.1.cs | |
| 01-10-09 02:13 | Keith_Hodges | Status | new => pending |
| 10-06-09 10:24 | nicolas cellier | Issue Monitored: nicolas cellier | |
| 10-06-09 10:25 | nicolas cellier | Status | pending => resolved |
| 10-06-09 10:25 | nicolas cellier | Fixed in Version | => trunk |
| 10-06-09 10:25 | nicolas cellier | Resolution | open => fixed |
| 10-06-09 10:25 | nicolas cellier | Assigned To | => nicolas cellier |
| 10-06-09 10:25 | nicolas cellier | Note Added: 0013358 | |
| 04-18-10 22:04 | andreas | Status | resolved => closed |
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