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I'm currently reading a file and wanted to be able to convert the array of bytes obtained from the file into a short array.

How would I go about doing this?

flag	asked 2 days ago williamtroup 139●6

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Do you want to convert 1 byte to 1 short, or 2 bytes to 1 short? – mpbloch 2 days ago

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Jason · Accepted Answer · 7/9/2009 3:25:38 PM UTC

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One possibility is using Enumerable.Select:

byte[] bytes;
var shorts = bytes.Select(b => (short)b).ToArray();

Another is to use Array.ConvertAll:

byte[] bytes;
var shorts = Array.ConvertAll(bytes, b => (short)b);

answered 2 days ago

Jason
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Your original suggestion (before you added the second one later on) is rather inefficient – activa 2 days ago

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activa · Answer 2 · 7/9/2009 3:26:06 PM UTC

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 short[] wordArray = Array.ConvertAll(byteArray, (b) => (short)b);

answered 2 days ago

activa
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Jhonny D. Cano -Leftware- · Answer 3 · 7/9/2009 3:29:05 PM UTC

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byte[] bytes;
var shorts = bytes.Select(n => System.Convert.ToInt16(n)).ToArray();

answered 2 days ago

Chris
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	That's extremely inefficient: Calling convert.ToInt16() for every element, storing it in a temporary list, and then copying it to an new array. – activa 2 days ago
	yes, it is inefficient. I'm thinking that it's safer, tho, then casting. – Chris 2 days ago
	Safer than casting? A cast of byte to short always works. It can never throw an exception – activa 2 days ago

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Convert byte array to short array in C#

3 Answers