[Json] [Technical Errata Reported] RFC7493 (5354)

RFC Errata System <rfc-editor@rfc-editor.org> Thu, 10 May 2018 05:02 UTC

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Subject: [Json] [Technical Errata Reported] RFC7493 (5354)
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The following errata report has been submitted for RFC7493,
"The I-JSON Message Format".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata/eid5354

--------------------------------------
Type: Technical
Reported by: Anders Rundgren <anders.rundgren.net@gmail.com>

Section: 2.2

Original Text
-------------
An I-JSON sender cannot expect a receiver to treat an integer whose
absolute value is greater than 9007199254740991 (i.e., that is
outside the range [-(2**53)+1, (2**53)-1]) as an exact value.

Corrected Text
--------------
An I-JSON sender cannot expect a receiver to treat an integer whose
absolute value is greater than 9007199254740992 (i.e., that is
outside the range [-(2**53), (2**53)]) as an exact value.

Notes
-----
The limit is presumably derived from ECMAScript which says:

"The value of Number.MAX_SAFE_INTEGER is the largest integer n such that n and n + 1 are both exactly representable as a Number value"

However, Number.MAX_SAFE_INTEGER is 9007199254740991.

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-------------
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--------------------------------------
RFC7493 (draft-ietf-json-i-json-06)
--------------------------------------
Title               : The I-JSON Message Format
Publication Date    : March 2015
Author(s)           : T. Bray, Ed.
Category            : PROPOSED STANDARD
Source              : JavaScript Object Notation
Area                : Applications
Stream              : IETF
Verifying Party     : IESG