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Bug #4656
closedFloat#to_s can produce too many digits
Description
In trunk, Float#to_s can produce too many digits.
$ ./miniruby -ve 'puts Float::DIG, 3970 / 3000.0'
ruby 1.9.3dev (2011-05-09 trunk 31491) [x86_64-darwin10.7.0]
15
1.3233333333333333
In the above example, Float::DIG is 15, so the number of significant digits is at most 16.
However, the indefinite 17th digit is produced.
1.9.2 also has this issue.
Updated by nobu (Nobuyoshi Nakada) over 13 years ago
- Status changed from Open to Rejected
Because they are different values.
$ ruby -e 'p 1.323333333333333 == 3970 / 3000.0'
false
$ ruby -e 'p 1.3233333333333333 == 3970 / 3000.0'
true
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