| Ticket UUID: | 1556802 | |||
| Title: | [TIP#274] right associativity for ** operator | |||
| Type: | Patch | Version: | TIP Implementation | |
| Submitter: | dgp | Created on: | 2006-09-12 03:18:39 | |
| Subsystem: | 45. Parsing and Eval | Assigned To: | dgp | |
| Priority: | 5 Medium | Severity: | ||
| Status: | Closed | Last Modified: | 2006-11-05 10:29:47 | |
| Resolution: | Accepted | Closed By: | dgp | |
| Closed on: | 2006-11-05 03:29:47 | |||
| 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 2006-11-05 10:29:47:
Logged In: YES user_id=80530 TIP 274 Accepted. Patch committed. dgp added on 2006-09-12 10:18:39: File Added - 193061: expon.patch | |||
Attachments:
- expon.patch [download] added by dgp on 2006-09-12 10:18:39. [details]