This was fixed ages ago which can be verified with
c: releases my $f = open("/tmp/dasdasdasdastest.txt", :r, :w);
$f.write("hello".encode); $f.seek(0); say $f.read(5).decode
also, tests are present in t/spec/S32-io/open.t. Setting to resolved.
# New Ticket Created by "Carl Mäsak"
# Please include the string: [perl #125170]
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hm... if I read the code correctly, open(:rw) doesn't actually
do what it promises - it