Empty elements in C# byte array

Question

Is there any method to empty an Byte array in C#?

Byte[] array = new Byte[64]; // contain all 0

// write some value into the array

// need empty array with all 0's

Petar Ivanov · Accepted Answer · 2011-07-01 09:46:59Z

114

Byte[] array = new Byte[64];

Array.Clear(array, 0, array.Length);

edited Jul 1, 2011 at 9:46

answered Jul 1, 2011 at 9:32

Petar Ivanov

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3 Comments

c00000fd Over a year ago

It won't be optimized out of the Release build though, right? Eg: SecureZeroMemory vs ZeroMemory in Win32.

MartinZ Over a year ago

@c00000fd Please check this answer

Zapnologica Over a year ago

What is the performance difference between the two methods? When would I use one over the other?

Mak Ahmed · Accepted Answer · 2021-01-03 08:36:28Z

25

Kindly use Array.Empty method

byte[] rawBytes = Array.Empty();

answered Jan 3, 2021 at 8:36

Mak Ahmed

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2 Comments

sbr Over a year ago

byte[] rawBytes = Array.Empty<byte>();

badjuice Over a year ago

@sbr This has been helpful since I needed to pass it to a method in tests. Thanks!!

Ricky · Accepted Answer · 2017-07-17 22:08:46Z

7

I tried endlessly to use Array.Clear() to clear a large byte[] that I have in my program. It would NEVER work. I do not know why. But I found a solution:

array = new byte[0];

answered Jul 17, 2017 at 22:08

Ricky

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Comments

Amrit · Accepted Answer · 2011-07-01 09:34:13Z

3

Use the "clear" method on Array.

 Array.Clear(array , 0, array.Length);

answered Jul 1, 2011 at 9:34

Amrit

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Comments

Andy · Accepted Answer · 2011-07-01 09:44:30Z

1

for (int i = 0; i < array.Length; i++)
    array[i] = 0;

answered Jul 1, 2011 at 9:44

Andy

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