From: ko1@... Date: 2019-11-29T08:51:24+00:00 Subject: [ruby-core:96026] [Ruby master Bug#16366] .count on endless range causes infinite loop Issue #16366 has been updated by ko1 (Koichi Sasada). I introduce general solution. Notes: * there are no "(1..).count" test. can anyone write it? * My fix can introduce additional problems because it increases interrupt points. Please report us if you find a problem on your app. * My fix can introduce additional overhead (checking interrupts). I tried to reduce this overhead by rewriting checking code, however, the original code (no modification code) is fastest :p ---------------------------------------- Bug #16366: .count on endless range causes infinite loop https://bugs.ruby-lang.org/issues/16366#change-82874 * Author: duffyjp (Jacob Duffy) * Status: Closed * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-darwin19] * Backport: 2.5: UNKNOWN, 2.6: UNKNOWN ---------------------------------------- Out of curiosity, I tried: ``` ruby (1..).count ``` Which resulted in an unkillable 100% CPU irb session. I expected either an exception or maybe `Infinity` Thanks ---Files-------------------------------- enum_count_pass-16366.patch (765 Bytes) -- https://bugs.ruby-lang.org/ Unsubscribe: