338005 - Usage of INF/-INF with float and double not as expected

Status: RESOLVED FIXED

(Core Graveyard :: Web Services, defect)

Description

[Steve Speicher]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3

When values are typed as float or double, have the "special values" of INF and -INF.  When simple types are bound to facets of INF/-INF the values do not behave as expected.

Problem appears to be around the fact that strtod (and ToFloat()) don't return the appropriate values for INF and -INF.  strtod usually
returns 0.0 for both INF and -INF. ToFloat() usually returns garbage for INF
and -INF.

X-Smiles uses the Xerces validator, which handles these properly ie -INF < INF,
-INF < everything, everything < INF, ... what you'd expect.

Perhaps this should be handled directly in strtod and ToFloat()? or just indirectly our processing of infinity.

See related bug 331897

Reproducible: Always

Comment 1

[Steve Speicher]

Attachment: test case w/ inline schema

enter values in form to see validity results

Comment 2

[Steve Speicher]

Attachment: patch

since it was fresh on my mind, handling in schema validation code makes more sense as handling of NaN is special to xml schema.  Though would *be nice* if moz utils could return appropriate values for +/-INF.

Comment 3

[aaronr]

checked into trunk for sspeiche

Comment 4

[aaronr]

checked into 1.8.0 branch on 2006/09/21

Comment 5

[aaronr]

checked into 1.8 branch on 2006/11/21