Bug #13104
closed
We looked at this issue at yesterday's developer meeting.
The intension was not made clear, but we confirmed that mathn's global side-effects are the nature of that library. Maybe requiring it implies your willing to accept such surprising behaviour.
- Subject changed from math.rb affects Rational literals to mathn.rb affects Rational literals
Seems to be triggered by ext/mathn/rational/rational.c
and ext/mathn/complex/complex.c
, which activate "canonicalization" in rational.c
and complex.c
.
$ ruby -r mathn/rational -e 'p Rational(2/1)'
2
$ ruby -r mathn/complex -e 'p Complex("3+0i")'
3
I suppose the reasoning behind the behavior was that in mathematics generally the simplest representation of a number is used, and n/1 = n.
But what are the plans for mathn
anyway? -- It seems to be deprecated since 2.2 (#10169).
- Target version deleted (
2.5)
mathn is out of scope from release engineering.
- Status changed from Assigned to Closed
mathn was removed in Ruby 2.5.
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