clarification

WDT · 01-21-2009, 12:29 AM

Hello

I've just decided to add C# to my repetoire so I'm going through the language at the moment to iron out the differences between in and c++. At the moment I just need to clarify the value parameter of a method with perhaps an explanation of what's actually happening at the memory level:

Code:

IntHolder first = new IntHolder();
first.i=5;
IntHolder second = first;
first.i=6;
Console.WriteLine (second.i);

Output: 5

Now normally I would've thought that would produce a 6 since IntHolder second = first is a reference to the same object.

Magos · 01-21-2009, 01:09 AM

IntHolder is a struct, which means value type (no referenses). Had it been a class the output would be 6.

01-21-2009, 12:29 AM	#1
WDT Tha 1 Sick RAT Join Date: Dec 2003 Posts: 267	clarification Hello I've just decided to add C# to my repetoire so I'm going through the language at the moment to iron out the differences between in and c++. At the moment I just need to clarify the value parameter of a method with perhaps an explanation of what's actually happening at the memory level: Code: IntHolder first = new IntHolder(); first.i=5; IntHolder second = first; first.i=6; Console.WriteLine (second.i); Output: 5 Now normally I would've thought that would produce a 6 since IntHolder second = first is a reference to the same object. __________________ A hundred Elephants can knock down the walls of a fortress... One diseased rat can kill everyone inside
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01-21-2009, 01:09 AM	#2
Magos Confused Join Date: Sep 2001 Location: Sweden Posts: 3,125	IntHolder is a struct, which means value type (no referenses). Had it been a class the output would be 6. __________________ MagosX.com Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.
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