How to convert a string to an ushort array

Question

How to convert a string to an ushort array..

Thank you very much for your help.

Thanks, Lokesh

What are you going to do with this array - do you need a trailing zero because you're going to pass it a zero-terminated string? — Rup, Jul 29 '10 at 11:16

fearofawhackplanet · Answer 1 · 2010-07-29T11:23:01.967

4

string s = "test";
ushort[] result = s.ToCharArray().Select(c => (ushort)c).ToArray();

Not sure if it's the best way, but it should work.

Edit: I didn't know string implemented IEnumerable. So actually you just need:

ushort[] result = s.Select(c => (ushort)c).ToArray();

Thanks to Jeff for pointing that out.

edited Jul 29 '10 at 11:23

answered Jul 29 '10 at 11:11

fearofawhackplanet

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+1, though not necessary to convert the string to an array. It can be left out. – Jeff Mercado Jul 29 '10 at 11:16

score 0 · Answer 2 · answered Jun 18 '14 at 20:00

If you don't require verifiable IL, the fastest way (that avoids copying the string data entirely) that only uses the standard library is to use the unsafe overload of Encoding.GetBytes:

fixed (char* src = str) {
   fixed (ushort* dst = arr) {
       Encoding.Unicode.GetBytes(src, str.Length, (byte*)dst, arr.Length * 2);
   }
}

How to convert a string to an ushort array

2 Answers2

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