Package utf16 implements encoding and decoding of UTF-16 sequences.
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Decode returns the Unicode code point sequence represented by the UTF-16 encoding s.
DecodeRune returns the UTF-16 decoding of a surrogate pair. If the pair is not a valid UTF-16 surrogate pair, DecodeRune returns the Unicode replacement code point U+FFFD.
Encode returns the UTF-16 encoding of the Unicode code point sequence s.
EncodeRune returns the UTF-16 surrogate pair r1, r2 for the given rune. If the rune is not a valid Unicode code point or does not need encoding, EncodeRune returns U+FFFD, U+FFFD.
IsSurrogate returns true if the specified Unicode code point can appear in a surrogate pair.