Issue #5206 has been updated by naruse (Yui NARUSE).

Status changed from Assigned to Closed

Keep compatibility for a while.

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Feature #5206: ruby -K should warn
https://bugs.ruby-lang.org/issues/5206#change-70478

* Author: drbrain (Eric Hodel)
* Status: Closed
* Priority: Normal
* Assignee: matz (Yukihiro Matsumoto)
* Target version: 
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When ruby is run with -K it changes the default encoding of all files even when that may be incompatible with the source.  If many libraries are used -K may cause incorrect behavior.

Now that we have the "coding:" magic comment ruby should warn if the -K flag is used and suggest that "coding:" magic comment be used instead.



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