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Bug 2206 - R-214: Question about the value space of double
Summary: R-214: Question about the value space of double
Status: ASSIGNED
Alias: None
Product: XML Schema
Classification: Unclassified
Component: Datatypes: XSD Part 2 (show other bugs)
Version: 1.0 only
Hardware: All All
: P2 normal
Target Milestone: ---
Assignee: C. M. Sperberg-McQueen
QA Contact: XML Schema comments list
URL:
Whiteboard:
Keywords: decided
Depends on:
Blocks:
 
Reported: 2005-09-14 19:10 UTC by Sandy Gao
Modified: 2007-03-29 18:49 UTC (History)
0 users

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Description Sandy Gao 2005-09-14 19:10:19 UTC
[Definition:] The double datatype is patterned after the IEEE double-precision 
64-bit floating point type [IEEE 754-1985]. The basic value space of double 
consists of the values m 2^e, where m is an integer whose absolute value is 
less than 2^53, and e is an integer between -1075 and 970, inclusive. ... 

It seems to me that "e" should be an integer between -1074 and 971, inclusive. 

See:
http://lists.w3.org/Archives/Public/www-xml-schema-comments/2003JanMar/0022.html

Response from Xan:
http://lists.w3.org/Archives/Public/www-xml-schema-comments/2003JanMar/0027.html
Comment 1 Sandy Gao 2005-09-14 19:10:30 UTC
Resolved at the 2003-08-29 telecon to classify as an error, and to instruct the 
editors to fix the error in the manner discussed on the email thread.
Comment 3 Sandy Gao 2005-10-14 15:29:32 UTC
Discussed at 2005-10-14 telecon.

Resolution: to adopt the suggested exponent range -1074 and 971 for double.