[ruby-core:95950] [Ruby master Bug#16366] .count on endless range causes infinite loop
From:
merch-redmine@...
Date:
2019-11-26 03:59:11 UTC
List:
ruby-core #95950
Issue #16366 has been updated by jeremyevans0 (Jeremy Evans). File enum_count_pass-16366.patch added Attached is a patch that allows interrupting the iteration. It uses `rb_thread_check_ints` in each loop iteration for Range#count calls (unless a block is passed, as the block case is already interruptable). ---------------------------------------- Bug #16366: .count on endless range causes infinite loop https://bugs.ruby-lang.org/issues/16366#change-82786 * Author: duffyjp (Jacob Duffy) * Status: Open * 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: <mailto:[email protected]?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>