C# in Detail. Part 2: Reference Types

© { JSL }

41

Boxed Solution

·when a reference variable binds to a value

wthe runtime copies the value onto the heap

wthe reference refers to the copy on the heap

wthis is called boxing

the copy is the same plain bitwise copy

used for value parameters/returns

struct Pair

{

public int X, Y;

...

}

static void Function()

{

Pair p = new Pair(1,2);

object o = p;

}

p.X

stack

heap

1

2

p.Y

.X

1

2

.Y

@

o

box