From: sto.mar@... Date: 2017-02-23T20:19:38+00:00 Subject: [ruby-core:79731] [Ruby trunk Bug#13104] mathn.rb affects Rational literals Issue #13104 has been updated by Marcus Stollsteimer. 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). ---------------------------------------- Bug #13104: mathn.rb affects Rational literals https://bugs.ruby-lang.org/issues/13104#change-63152 * Author: Nobuyoshi Nakada * Status: Assigned * Priority: Normal * Assignee: Yukihiro Matsumoto * Target version: 2.5 * ruby -v: r57270 * Backport: 2.2: REQUIRED, 2.3: REQUIRED, 2.4: REQUIRED ---------------------------------------- Without mathn: ``` $ ruby -e 'p 1.0r' (1/1) ``` With mathn: ``` $ ruby -rmathn -e 'p 1.0r' 1 ``` Is this intentional? https://github.com/ruby/ruby/compare/trunk...nobu:bug/rational-literal-mathn -- https://bugs.ruby-lang.org/ Unsubscribe: