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When converting from float to (TICKS . HZ) form, do the conversion exactly. When converting from (TICKS . HZ) form to float, round to even precisely. This way, successfully converting a float to (TICKS . HZ) and back yields a value numerically equal to the original. * src/timefns.c (flt_radix_power_size): New constant. (flt_radix_power): New static var. (decode_float_time): Convert the exact numeric value rather than guessing TIMESPEC_HZ resolution. (s_ns_to_double): Remove; no longer needed. (frac_to_double): New function. (decode_ticks_hz): It is now the caller’s responsibility to pass a valid TICKS and HZ. All callers changed. Use frac_to_double to round (TICKS . HZ) precisely. (decode_time_components): When decoding nil, use decode_ticks_hz since it rounds precisely. (syms_of_timefns): Initialize flt_radix_power. * test/src/timefns-tests.el (float-time-precision): New test. |
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| .. | ||
| regex-resources | ||
| alloc-tests.el | ||
| buffer-tests.el | ||
| callint-tests.el | ||
| callproc-tests.el | ||
| casefiddle-tests.el | ||
| charset-tests.el | ||
| chartab-tests.el | ||
| cmds-tests.el | ||
| coding-tests.el | ||
| data-tests.el | ||
| decompress-tests.el | ||
| doc-tests.el | ||
| editfns-tests.el | ||
| emacs-module-tests.el | ||
| eval-tests.el | ||
| fileio-tests.el | ||
| floatfns-tests.el | ||
| fns-tests.el | ||
| font-tests.el | ||
| inotify-tests.el | ||
| json-tests.el | ||
| keyboard-tests.el | ||
| keymap-tests.el | ||
| lcms-tests.el | ||
| lread-tests.el | ||
| marker-tests.el | ||
| minibuf-tests.el | ||
| print-tests.el | ||
| process-tests.el | ||
| regex-emacs-tests.el | ||
| syntax-tests.el | ||
| textprop-tests.el | ||
| thread-tests.el | ||
| timefns-tests.el | ||
| undo-tests.el | ||
| xml-tests.el | ||