Bug #9191

Inconsistent comparison between Float and BigDecimal

Added by Gustavo Sales 5 months ago. Updated 5 months ago.

[ruby-core:58755]
Status:Closed
Priority:Normal
Assignee:-
Category:-
Target version:-
ruby -v: 2.0.0p353 (2013-11-22 revision 43784) [x86_64-darwin11.4.2] Backport:1.9.3: UNKNOWN, 2.0.0: UNKNOWN

Description

I was checking a possible inconsistency on ActiveModel and I found situations where comparing BigDecimal to Float differs to comparing Float to BigDecimal.

I have create a simple ruby script to exemplify the problem. The script is attach to this issue and output is as follows:

Instance number 706.05
###########
Instance number 706.06
Inconsistence:
0.70606E3 > 706.06

706.06 < 0.70606E3

Inconsistence:
0.70606E3 <= 706.06

706.06 >= 0.70606E3

###########
Instance number 706.07
Inconsistence:
0.70607E3 < 706.07

706.07 > 0.70607E3

Inconsistence:
0.70607E3 >= 706.07

706.07 <= 0.70607E3

###########
Instance number 706.08
###########

Associated revisions

Revision 45235
Added by Marc-Andre Lafortune about 1 month ago

  • numeric.c: Mention that Float::DIG is the minimum number of siginificant digits. See #9191

History

#1 Updated by Hiroshi SHIBATA 5 months ago

  • Status changed from Open to Closed

duplicated #9192

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