Bug #9574: Inconsistent behavior between Kernel#Float and to_f

• Status: Closed
• Assignee: zzak (zzak _)
• Target version: -
• ruby -v: 2.1.0

[robin850 (Robin Dupret)]

Hello,

Sorry if this has still been requested, I haven't found anything about this on the tracker. There is an inconsistent behavior between #to_f and Float() with strings. I don't know whether this is intended or not but if it is, there is at least something wrong in Kernel#Float's documentation:

Numeric types are converted directly, the rest are converted using arg.to_f.

>> "123.".to_f
=> 123.0
>> Float("123.")
ArgumentError: invalid value for Float(): "123."
from (pry):1:in `Float'

The issue has been originally reported here https://github.com/rails/rails/issues/11800.

Have a nice day.

[nobu (Nobuyoshi Nakada)]

• Category changed from core to doc

[zzak (zzak _)]

• Status changed from Open to Assigned
• Assignee set to zzak (zzak _)

Thanks for the report!

[jeremyevans0 (Jeremy Evans)]

• Related to Bug #11736: Float(arg) not consistent with documentation added

[jeremyevans0 (Jeremy Evans)]

• Status changed from Assigned to Closed
• Backport deleted (1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN)