[ruby-core:99170] [Ruby master Bug#17032] BigDecimal .to_d is behaving inconsistent compared to .to_f

[ruby-core:99170] [Ruby master Bug#17032] BigDecimal .to_d is behaving inconsistent compared to .to_f

[tilo.sloboda]

Issue #17032 has been reported by TiloS (Tilo S).

----------------------------------------
Bug #17032: BigDecimal .to_d is behaving inconsistent compared to .to_f
https://bugs.ruby-lang.org/issues/17032

* Author: TiloS (Tilo S)
* Status: Open
* Priority: Normal
* ruby -v: 2.5.5
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------

As a Ruby user I would expect `.to_f` and `.to_d` to behave identically.

Specifically `nil.to_d` should behave like `nil.to_f`


2.5.5 :001 > require 'bigdecimal'
 => true
2.5.5 :002 > require 'bigdecimal/util'
 => true
2.5.5 :003 > nil.to_f
 => 0.0
2.5.5 :004 > nil.to_d
Traceback (most recent call last):
        2: from /Users/tsloboda/.rvm/rubies/ruby-2.5.5/bin/irb:11:in `<main>'
        1: from (irb):4
NoMethodError (undefined method `to_d' for nil:NilClass)

# users should not have to resort to this:

2.5.5 :005 > nil.to_f.to_d
 => 0.0



-- 
https://bugs.ruby-lang.org/

[ruby-core:99208] [Ruby master Bug#17032] BigDecimal's `to_d` behaves inconsistent compared to `to_f`

[merch-redmine]

Issue #17032 has been updated by jeremyevans0 (Jeremy Evans).

Status changed from Open to Closed

`NilClass#to_d` was added in Ruby 2.6.  As it is not security-related (and seems more like a new feature than a bug fix), it will not be backported to Ruby 2.5, as that is in security maintenance mode.

----------------------------------------
Bug #17032: BigDecimal's `to_d` behaves inconsistent compared to `to_f`
https://bugs.ruby-lang.org/issues/17032#change-86586

* Author: TiloS (Tilo S)
* Status: Closed
* Priority: Normal
* ruby -v: 2.5.5
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
I would expect `to_f` and `to_d` to behave identically. Specifically, `nil.to_d` should behave like `nil.to_f`.

```ruby
require 'bigdecimal'
require 'bigdecimal/util'
nil.to_f # => 0.0
nil.to_d # >> NoMethodError (undefined method `to_d' for nil:NilClass)
```

Users should not have to resort to this:

```ruby
nil.to_f.to_d #  => 0.0
```




-- 
https://bugs.ruby-lang.org/