I was wondering if there any other good examples of when Perl will silently upgrade (as in utf8::upgrade) a string. For instance, perl will do this when you concatenate a "non-utf8" string with a utf8 string:
$a = "Hello"; # utf8 flag not set $b = chr(1024); $a .= $b; # $a now has its utf8 flag set chop $a; # $a still has utf8 flag ste Are there any other examples? I'm especially interested in cases where the non-utf8 string gets upgraded but actually doesn't change. Thanks, ER
