View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001461 | 1003.1(2016/18)/Issue7+TC2 | System Interfaces | public | 2021-03-22 10:40 | 2024-06-11 09:08 |
| Reporter | geoffclare | Assigned To | |||
| Priority | normal | Severity | Comment | Type | Clarification Requested |
| Status | Closed | Resolution | Accepted | ||
| Name | Geoff Clare | ||||
| Organization | The Open Group | ||||
| User Reference | |||||
| Section | tgamma() | ||||
| Page Number | 2145 | ||||
| Line Number | 68720 | ||||
| Interp Status | --- | ||||
| Final Accepted Text | |||||
| Summary | 0001461: tgamma() with negative integer argument | ||||
| Description | The tgamma() FUTURE DIRECTIONS section says:It is possible that the error response for a negative integer argument may be changed to a pole error and a return value of ±Inf. C17 allows a domain error or a pole error (with implementation-defined return value). However, when IEC 60559 Floating-Point is supported, an "invalid" floating-point exception (i.e. a domain error) and NaN return are required. This has not changed in the Dec 2020 C2x draft. So changing POSIX to require a pole error would introduce a conflict with the C standard. I would suggest that we just change POSIX to match the C standard, i.e. allow either a domain error or a pole error, when IEC 60559 Floating-Point is not supported. | ||||
| Desired Action | On page 2145 line 68720 section tgamma(), change:If x is a negative integer, a [CX]domain[/CX] error may occur and either a NaN (if supported) or an implementation-defined value shall be returned.to: If x is a negative integer, either a domain error or a pole error may occur and either a NaN (if supported) or +/-Inf (if supported), respectively, or an implementation-defined value shall be returned. On page 2146 line 68762 section tgamma(), change: Pole Error The value of x is zero.to: Pole Error The value of x is zero or a negative integer. On page 2146 line 68781 section tgamma(), change: It is possible that the error response for a negative integer argument may be changed to a pole error and a return value of ±Inf.to: None. | ||||
| Tags | issue8 | ||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2021-03-22 10:40 | geoffclare | New Issue | |
| 2021-03-22 10:40 | geoffclare | Name | => Geoff Clare |
| 2021-03-22 10:40 | geoffclare | Organization | => The Open Group |
| 2021-03-22 10:40 | geoffclare | Section | => tgamma() |
| 2021-03-22 10:40 | geoffclare | Page Number | => 2145 |
| 2021-03-22 10:40 | geoffclare | Line Number | => 68720 |
| 2021-03-22 10:40 | geoffclare | Interp Status | => --- |
| 2021-11-18 16:36 | Don Cragun | Status | New => Resolved |
| 2021-11-18 16:36 | Don Cragun | Resolution | Open => Accepted |
| 2021-11-18 16:36 | Don Cragun | Tag Attached: issue8 | |
| 2021-12-13 15:02 | geoffclare | Status | Resolved => Applied |
| 2024-06-11 09:08 | agadmin | Status | Applied => Closed |
