chars_to_utf8(STRING)
The chars in STRING are encoded in-place into UTF-8. Returns the new
size of STRING, or C<undef> if there's a failure.
No assumptions are made on the encoding of the chars. If you want to
assume that the chars are Unicode and to trap illegal Unicode
characters, you must use C<from_to('Unicode', ...)>.
OK, I can understand why the second paragraph is included here.
chars_to_utf8(STRING, FROM [, CHECK])
The chars in STRING encoded in FROM are recoded in-place into UTF-8.
Returns the new size of STRING, or C<undef> if there's a failure.
No assumptions are made on the encoding of the chars. If you want to
assume that the chars are Unicode and to trap illegal Unicode
characters, you must use C<from_to('Unicode', ...)>.
I do not understand the last paragraph in this section. Isn't it
contradicted by the first paragraph? The STRING is assumed to have
the encoding that is specified as FROM, right?
--
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