Bug #10569: BigDecimal#fix returns a BigDecimal object instead of a Integer

• Status: Rejected
• Assignee: mrkn (Kenta Murata)
• Target version: -
• ruby -v: ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-darwin13.0]
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN

[jjconti (Juanjo Conti)]

According docs (http://www.ruby-doc.org/stdlib-2.1.5/libdoc/bigdecimal/rdoc/BigDecimal.html#method-i-fix): fix method return the integer part of the number. But it's returning a BugDecimal:

a = BigDecimal(7)
=> #BigDecimal:7fb18015e698,'0.7E1',9(27)
a.fix
=> #BigDecimal:7fb180185d38,'0.7E1',9(18)
a.fix.to_i
=> 7

Similar problem happens with frac method.

[jjconti (Juanjo Conti)]

BigDecimal, sorry for the typo :)

I'm pasting again the example because some chars were deleted in the original report:

a = BigDecimal(7)
=> #<BigDecimal:7fb18015e698,'0.7E1',9(27)>
a.fix
=> #<BigDecimal:7fb180185d38,'0.7E1',9(18)>
a.fix.to_i
=> 7

[jjconti (Juanjo Conti)]

Seems that Python works the same way. Probably is not a bug:

>>> decimal.Decimal(7).imag
Decimal('0')
>>> decimal.Decimal(7).real
Decimal('7')

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Rejected

It returns the integer part as a BigDecimal.

[stomar (Marcus Stollsteimer)]

I submitted a patch that clarifies the documentation accordingly, see issue #10576 (and provides some additional improvements).