| Ticket UUID: | 1556802 | ||
| Title: | [TIP#274] right associativity for ** operator | ||
| Type: | Patch | Created on: | 2006-09-12 03:18:39 |
| Submitter: | dgp | Assigned to: | dgp |
| Subsystem: | 45. Parsing and Eval | Severity: | |
| Priority: | 5 Medium | Last modified: | 2006-11-05 10:29:47 |
| Status: | Closed | Closed by: | dgp |
| Resolution: | Accepted | Closed on: | 2006-11-05 03:29:47 |
| Version: | TIP Implementation | ||
| Description: | ||||
David Smith has observed on the tcl-core mailing list that left associativity of the ** operator proposed by TIP 123 and implemented in current devlopment sources of Tcl is at odds with several other languages and computing environments. Attached is a patch that changes ** to right associativity. Here it is in action: % expr 2**3**4 2417851639229258349412352 I note that there are zero tests in the test suite checking the associativity of **, which I take as evidence that the original left-associative implementation choice wasn't a feature of great importance. | ||||
| User Comments: | ||||
dgp added on 2006-09-12 10:18:39:
File Added - 193061: expon.patch dgp added on 2006-11-05 10:29:47:
Logged In: YES user_id=80530 TIP 274 Accepted. Patch committed. | ||||
Attachments:
- expon.patch [download] added by dgp on 2006-09-12 10:18:39. [details]