Issue #9810 has been reported by Brian Shirai. ---------------------------------------- Bug #9810: Numeric#step behavior with mixed Float, String arguments inconsistent with documentation https://bugs.ruby-lang.org/issues/9810 * Author: Brian Shirai * Status: Open * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- The Numeric#step documentation states: "If any of the arguments are floating point numbers, all are converted to floats..." https://github.com/ruby/ruby/blob/trunk/numeric.c#L1921 Is the following code intended to be described by that documentation? 1.1.step(5.1, "1") {} Previously (eg 2.0.0) resulted in a TypeError: $ ruby -v -e 'p 1.1.step(5.1, "1") {}' ruby 2.0.0p247 (2013-06-27) [x86_64-darwin13.0.1] -e:1:in `step': no implicit conversion to float from string (TypeError) from -e:1:in `<main>' In 2.1.1, at least, an ArgumentError is raised: $ ruby -v -e 'p 1.1.step(5.1, "1") {}' ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0] -e:1:in `>': comparison of String with 0 failed (ArgumentError) from -e:1:in `step' from -e:1:in `<main>' What's the intended behavior? -- https://bugs.ruby-lang.org/