Convert one byte to signed byte or int

Question

oxfc is negative but I have it as a byte and its value is 252, is there any way to convert it to signed byte or int?

I found this method:

(BitConverter.ToInt16(new byte[2] { 0, 0xfc }, 0) / 256).ToString()

But is there any better way?

Ben Voigt · Accepted Answer · 2014-07-28 02:04:30Z

11

You can simply cast it:

byte b = 0xfc; sbyte s = unchecked((sbyte)b);

answered Jul 28, 2014 at 2:04

Ben Voigt

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4 Comments

Transcendent Over a year ago

He said "oxfc is negative" so I don't think a negative value can be casted to a byte. Let me know if I'm wrong.

Ben Voigt Over a year ago

@Transcendent: He says he has 0xFC already in a byte (its value is 252) and wants it interpreted in two's complement (-4) and saved to a signed varianle.

Transcendent Over a year ago

So that's a positive value in that case, I don't understand why he mentioned that 0xfc is a negative value.

Ben Voigt Over a year ago

@Transcendent: It is negative according to a two's complement interpretation. (actually, also according to one's complement and signed-magnitude)

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