couchbase / couchbase/fleece

Support for "raw" (ASCII or BCD) numbers

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Dominant language
C++
Stars
338
Forks
35
Avg merge
13h 41m
Merged PRs (30d)
3

Description

Some applications require either huge numbers, or perfectly lossless decimal numbers (e.g. banking). 64-bit floating point doesn't work for these because it loses precision as numbers grow, and it can't represent negative powers of ten precisely.

The workaround in JSON is to store the number as a string containing an ASCII decimal representation. It would be useful to have a data type for this, so it could be recognized by all clients as a number. Accessing it as an int or double would be best-effort, accessing it as a string would return the exact string given.

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First steps

  1. Read the whole issue, then the project's contributing guide.
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  3. Fork the repository and make your change on a branch.
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Research direction

No file, test, or entry point is named in the issue, so first locate the existing numeric data-type implementation and its tests. Done means a raw ASCII or BCD decimal value preserves its exact string representation while best-effort integer and double access is supported.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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