How does ReferenceEquals fuction work?

[Holbox]

Hi people,
look at this (console project)

sub main
dim a as string = "Hola"
dim b as string = "Hola"
dim c as string = new string("Hola")
dim d as string = new string("Hola")

// this will return "TRUE"
system.console.writeline("equals?:" & referenceequals(a,b))

// this will return "FALSE"
system.console.writeline("equals?:" & referenceequals(c,d))

system.console.readline()
end sub

Why?

Thx

[Jon Skeet [C# MVP]]

Holbox <in*********@ya.com> wrote:

look at this (console project)

sub main
dim a as string = "Hola"
dim b as string = "Hola"
dim c as string = new string("Hola")
dim d as string = new string("Hola")

// this will return "TRUE"
system.console.writeline("equals?:" & referenceequals(a,b))

// this will return "FALSE"
system.console.writeline("equals?:" & referenceequals(c,d))

system.console.readline()
end sub

Why?

Because c and d are references to two different string objects, whereas
a and b are references to the same string object.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
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