It might be important to note that when one tries to print a wide string that happens to be representable in latin-1, Perl uses latin-1 with no warnings: 
$ perl -w -Mutf8 -E'print "ê"' | hd
00000000  ea                                                |.|
00000001

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"ê" is decoded into characters but then printed to a handle that doesn't have an :encode(...) or :utf8 IOLayer. Since it's representable in latin-1, the single-byte encoding is used and no warning is shown. 
$ perl -w -Mutf8 -E'print "ы"' | hd
Wide character in print at -e line 1.
00000000  d1 8b                                             |..|
00000002
Similar situation, but "ы" cannot be represented in latin-1, so we get a warning and UTF-8 bytes instead. 
$ perl -w -E'print "ê"' | hd
00000000  c3 aa                                             |..|
00000002

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(My terminal is UTF-8. No decoding or encoding is done in this case, Perl operates on bytes.)

In reply to Re^5: german Alphabet by Anonymous Monk
in thread german Alphabet by shreedara75

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