# Structure Byte

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    (* Byte -- SML Basis Library *)

    val byteToChar      : Word8.word -> Char.char
    val charToByte      : Char.char -> Word8.word
    val bytesToString   : Word8Vector.vector -> String.string
    val stringToBytes   : String.string -> Word8Vector.vector

    val unpackStringVec : Word8VectorSlice.slice -> string
    val unpackString    : Word8ArraySlice.slice -> string
    val packString      : Word8Array.array * int * Substring.substring -> unit

    (*
       Conversions between bytes and characters, and between byte vectors
       and strings (character vectors).

       [byteToChar w] is the character corresponding to the byte w.

       [charToByte c] is the byte corresponding to character c.

       [bytesToString v] is the string whose character codes are the bytes
       from vector v.

       [stringToBytes s] is the byte vector of character codes of the string s.

       In Moscow ML, all the above operations take constant time.  That
       is, no copying is done.

       [unpackStringVec v] is the string whose character codes are the
       bytes from the vector slice v.

       [unpackString a] is the string whose character codes are the bytes
       from the array slice a.

       [packString (a, i, ss)] copies the character codes of substring ss into
       the subarray a[i..i+n-1] where n = Substring.size ss.  Raises Subscript
       if i<0 or i+n > length a.
    *)

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Moscow ML 2.10