What is difference between these two arrays?

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VS2012

Hi,
What is difference in declaration between these two arrays?

C#

int[] array1 = new int[] { 1, 3, 5, 7, 9 };

and

C#

int[] array1 = { 1, 3, 5, 7, 9 };

Posted 23-Aug-12 4:53am

ahsanriaz1K

Updated 23-Aug-12 4:56am

v2

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[no name] 23-Aug-12 10:58am

Running it through your debugger should tell you.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-08-23T05:00:00

There is no difference.

You will save a lot of time if you disassemble code fragments in question and look at IL code. Even if you don't understand IL, you will be able to figure out what is identical and what is not. Please see:
http://msdn.microsoft.com/en-us/library/f7dy01k1%28v=vs.100%29.aspx[^],
http://en.wikipedia.org/wiki/ILDASM[^].

—SA

OriginalGriff · Accepted Answer · 2012-08-23T04:58:00

Solution 2

None whatsoever.
The first is just a way to explicitly state what type the compiler should expect. In the later, it works it out from the context.

Posted 23-Aug-12 4:58am

OriginalGriff

Comments

ahsanriaz1K 23-Aug-12 11:04am

Will the first declaration declares memory in heap and second declaration in stack?

OriginalGriff 23-Aug-12 11:08am

No - it is an array, so it is a reference type and will always be on the heap.

Christian Graus 23-Aug-12 11:11am

Like Griff said, it won't change the type of the objects, or how C# deals with them

Christian Graus · Accepted Answer · 2012-08-23T04:57:00

Solution 1

None, it's just a question of syntax. They are both of the same type, which is what tells the second syntax what to expect.

Posted 23-Aug-12 4:57am

Christian Graus