View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000793 | LDMud 3.5 | Implementation | public | 2011-11-17 16:43 | 2011-11-21 23:15 |
| Reporter | zesstra | Assigned To | zesstra | ||
| Priority | normal | Severity | major | Reproducibility | N/A |
| Status | resolved | Resolution | fixed | ||
| Target Version | 3.5.0 | Fixed in Version | 3.5.0 | ||
| Summary | 0000793: New savefile format supporting double precision for floats | ||||
| Description | 0000496 deals with a new float format with 'double' precision. This can be done independently of the savefile format. However, until we have a new savefile format supporting higher precision the new float format will be not as useful as it could be. Idea: use standard sprintf/sscanf for writing/parsing float values and get rid of the two representations in the savefile. | ||||
| Tags | No tags attached. | ||||
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We're talking about sprintf("%a", double), right? |
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Ah, yes. Or %la, which is equivalent for sprintf, but not sscanf. Or strtod() should do the same conversion. |
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The new savefile format 2 for saving the new float format introduced in 0000496 is no available in the driver in the 3.5.x branch. https://github.com/ldmud/ldmud/commit/95ad6fe1f9500d55e73db0f21d05c827a70a262d Savefiles with the new format version can be read and written with any driver more current than that commit (independent of the architecture). However if the driver uses internally the traditional 48 bit float format, a loss of precision and range will occur. If the driver uses the new float format from 0000496, but the values are saved in format version <2, there will be losses as well. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-11-17 16:43 | zesstra | New Issue | |
| 2011-11-17 16:43 | zesstra | Project | LDMud => LDMud 3.5 |
| 2011-11-17 16:44 | zesstra | Relationship added | related to 0000496 |
| 2011-11-17 16:44 | zesstra | Status | new => confirmed |
| 2011-11-17 16:44 | zesstra | Target Version | => 3.5.0 |
| 2011-11-17 16:44 | zesstra | Summary | New savefile format supporing double precision for floats => New savefile format supporting double precision for floats |
| 2011-11-18 13:38 | Gnomi | Note Added: 0002079 | |
| 2011-11-18 14:46 | zesstra | Note Added: 0002080 | |
| 2011-11-21 23:07 | zesstra | Assigned To | => zesstra |
| 2011-11-21 23:07 | zesstra | Status | confirmed => assigned |
| 2011-11-21 23:15 | zesstra | Note Added: 0002083 | |
| 2011-11-21 23:15 | zesstra | Status | assigned => resolved |
| 2011-11-21 23:15 | zesstra | Fixed in Version | => 3.5.0 |
| 2011-11-21 23:15 | zesstra | Resolution | open => fixed |
