BigDecimal - bug?

ruby-talk
1

Hi
* It seems that addition mentioned in previous mail points out a bug.
* to_d doesnt work -- if also depricated, please update ruby-doc
(if depricated, it should work anyway, shouldnt it?)
*is there a (direct) way to convert Float to BigDecimal?
Thanks
Berg

2

"doesn't work"?

07:27 ~/testcases/standalone(master)[ruby-2.3.0]$ irb
2.3.0 :001 > require 'bigdecimal'
=> true
2.3.0 :002 > require 'bigdecimal/util'
=> true
2.3.0 :003 > "1.5".to_d
=> #<BigDecimal:7fc02200a390,'0.15E1',18(18)>
2.3.0 :004 > (4/3).to_d
=> #<BigDecimal:7fc0220a2280,'0.1E1',9(27)>
2.3.0 :005 > Float(1.99).to_d
=> #<BigDecimal:7fc022091b38,'0.199E1',18(36)>
2.3.0 :006 >

How does that equate to "doesn't work"?

···

On Sun, Feb 28, 2016 at 12:38 AM, A Berger <aberger7890@gmail.com> wrote:

* It seems that addition mentioned in previous mail points out a bug.
* to_d doesnt work -- if also depricated, please update ruby-doc
(if depricated, it should work anyway, shouldnt it?)
*is there a (direct) way to convert Float to BigDecimal?

--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com

twitter: @hassan
Consulting Availability : Silicon Valley or remote

3

hello
Its nowhere stated, that .to_d also needs require .../util !
That should be mentioned in the .to_d paragraph!
ok, now I know why it didnt work...
Berg

4

% ri .to_d
= .to_d

(from ruby site)
=== Implementation from BigDecimal

···

On Sun, Feb 28, 2016 at 11:13 AM, A Berger <aberger7890@gmail.com> wrote:

Its nowhere stated, that .to_d also needs require .../util !

------------------------------------------------------------------------------
  a.to_d -> bigdecimal

------------------------------------------------------------------------------

Returns self.

(from ruby site)
=== Implementation from Float
------------------------------------------------------------------------------
  flt.to_d -> bigdecimal

------------------------------------------------------------------------------

Convert flt to a BigDecimal and return it.

  require 'bigdecimal'
  require 'bigdecimal/util'

  0.5.to_d
  # => #<BigDecimal:1dc69e0,'0.5E0',9(18)>

(from ruby site)
=== Implementation from Integer
------------------------------------------------------------------------------
  int.to_d -> bigdecimal

------------------------------------------------------------------------------

Convert int to a BigDecimal and return it.

  require 'bigdecimal'
  require 'bigdecimal/util'

: ...

--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com

twitter: @hassan
Consulting Availability : Silicon Valley or remote