Swift: How to convert a String to UInt8 array? -


how convert string uint8 array?

var str = "test" var ar : [uint8] ar = str

lots of different ways, depending on how want handle non-ascii characters.

but simplest code use utf8 view:

let string = "hello"  let array: [uint8] = array(string.utf8)

note, result in multi-byte characters being represented multiple entries in array, i.e.:

let string = "é" print(array(string.utf8))

prints out [195, 169]

there’s .nulterminatedutf8, same thing, adds nul-character end if plan pass somewhere c string (though if you’re doing that, can use .withcstring or use implicit conversion bridged c functions.


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