Single Structure under C#

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C#

.NET

I want to know how many byte contains the value 0x80000L888 which is of type System.Single ?

Posted 29-Jul-11 3:32am

amine24

Updated 29-Jul-11 3:59am

Manas Bhardwaj

v2

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3 solutions

Solution 3

You call single a structure? It is a structure in fact? Yes and no. All primitive types comes in their original form or in a boxed form. Only a boxed form is a structure. These two forms have different size (boxed is larger; also, it's a class).

Read about boxing: http://msdn.microsoft.com/en-us/library/yz2be5wk.aspx[^].

—SA

Posted 1-Aug-11 21:39pm

Sergey Alexandrovich Kryukov

Solution 2

To know size of a value type you could probably use below,

C#

static void Main(string[] args)
{
    Console.WriteLine("{0}",sizeof(Single));
}

:)

Posted 29-Jul-11 3:59am

Mohammad A Rahman

Comments

Olivier Levrey 29-Jul-11 10:19am

Good advice. My 5.

Mohammad A Rahman 29-Jul-11 10:33am

Thank you :)

Sergey Alexandrovich Kryukov 2-Aug-11 3:41am

True, but the title of the question implies boxed form (or rather OP needs explanation of it).
So, please see my solution.
--SA

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OriginalGriff · Accepted Answer · 2011-07-29T03:52:00

Solution 1

A Single is always 4 bytes, regardless of the number you store in it.

However, you can't assign 0x80000L888 to it - 'L' is not a valid hex digit!

Posted 29-Jul-11 3:52am

OriginalGriff

Comments

Olivier Levrey 29-Jul-11 10:19am

Everything is said! My 5.

Sergey Alexandrovich Kryukov 2-Aug-11 3:39am

Not quite everything. Look at the title of the question. This is about boxing.
Please see my solution as well.
--SA

Manas Bhardwaj 29-Jul-11 11:17am

+5