edward/agenda
1
0
Fork 0
Code Issues 16 Pull requests Packages Projects Releases Wiki Activity
agenda/node_modules/@webassemblyjs/floating-point-hex-parser
History
Edward Betts ea4980a5d7 Fix European trip return heuristic for weekend location tracking 
Adjust European short trip heuristic from >3 days to >1 day to correctly
detect when user has returned home from European trips. This fixes the
April 29-30, 2023 case where the location incorrectly showed "Sankt Georg, Hamburg"
instead of "Bristol" when the user was free (no events scheduled) after
the foss-north trip ended on April 27.

The previous logic required more than 3 days to pass before assuming
return home from European countries, but for short European trips by
rail/ferry, users typically return within 1-2 days.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-16 06:38:37 +02:00
..
lib Fix European trip return heuristic for weekend location tracking 2025-07-16 06:38:37 +02:00
LICENSE Fix European trip return heuristic for weekend location tracking 2025-07-16 06:38:37 +02:00
package.json Fix European trip return heuristic for weekend location tracking 2025-07-16 06:38:37 +02:00
README.md Fix European trip return heuristic for weekend location tracking 2025-07-16 06:38:37 +02:00

README.md

Parser function for floating point hexadecimals

license GitHub last commit npm

A JavaScript function to parse floating point hexadecimals as defined by the WebAssembly specification.

Usage

import parseHexFloat from '@webassemblyjs/floating-point-hex-parser'

parseHexFloat('0x1p-1')               // 0.5
parseHexFloat('0x1.921fb54442d18p+2') // 6.283185307179586

Tests

This module is tested in two ways. The first one is through a small set of test cases that can be found in test/regular.test.js. The second one is non-deterministic (sometimes called fuzzing):

  1. Generate a random IEEE754 double precision value x.
  2. Compute its representation y in floating point hexadecimal format using the C standard library function printf since C supports this format.
  3. Give both values to JS testcase and see if parseHexFloat(y) === x.

By default one npm test run tests 100 random samples. If you want to do more, you can set the environment variable FUZZ_AMOUNT to whatever number of runs you'd like. Because it uses one child process for each sample, it is really slow though. For more details about the randomized tests see the source.

Links