io.rb: `@buf` should be empty on `EOF`; #4983, #5389

5342b5cf · Yukihiro "Matz" Matsumoto · bf455fd5 · 5342b5cf
Unverified Commit 5342b5cf authored Apr 10, 2021 by Yukihiro "Matz" Matsumoto
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mrbgems/mruby-io/mrblib/io.rb mrbgems/mruby-io/mrblib/io.rb +0 -2

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--- a/mrbgems/mruby-io/mrblib/io.rb
+++ b/mrbgems/mruby-io/mrblib/io.rb
@@ -295,8 +295,6 @@ class IO
    begin
      readchar
    rescue EOFError
-      c = @buf[0]
-      @buf[0,1]="" if c
      nil
    end
  end