Counting the number of bytes used by characters of a String

[Nicolas]

Hi,

How one can count the number of bytes used by all the characters of a
String ?

i.e. String.Length * 2 (a char is 2 bytes long), but using more "proper"
ways.

Thanks.

[Rajagopal Pasupuleti]

you can use GetByteCount method of String Class

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rajagopal

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[Jon Skeet [C# MVP]]

Rajagopal Pasupuleti <ra****************@yahoo.com> wrote:

you can use GetByteCount method of String Class

I think you mean the GetByteCount method of the Encoding class - there
is no such method in the String class.

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[Jon Skeet [C# MVP]]

Nicolas <ni*****@serpe.org> wrote:

How one can count the number of bytes used by all the characters of a
String ?

In what encoding? In the CLR itself, or in a particular encoding?

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[Nicolas]

Jon Skeet [C# MVP] wrote:

Nicolas <ni*****@serpe.org> wrote:

How one can count the number of bytes used by all the characters of a
String ?

In what encoding? In the CLR itself, or in a particular encoding?

Just as it is, I mean the space it takes on RAM.
I think a String class stores a string as an array of char, just want to
know what place this array occupies.

[Nicolas]

Nicolas wrote:

Jon Skeet [C# MVP] wrote:

Nicolas <ni*****@serpe.org> wrote:

How one can count the number of bytes used by all the characters of a
String ?

In what encoding? In the CLR itself, or in a particular encoding?

Just as it is, I mean the space it takes on RAM.
I think a String class stores a string as an array of char, just want to
know what place this array occupies.

To be very clear:

String str = "hi";

How can I find the size of str in mem ? (no matter if we do not consider
the size of the enclosing class itself)

[Jon Skeet [C# MVP]]

Nicolas <ni*****@serpe.org> wrote:

In what encoding? In the CLR itself, or in a particular encoding?

Just as it is, I mean the space it takes on RAM.
I think a String class stores a string as an array of char, just want to
know what place this array occupies.

It's not actually an array of char itself - string is a very unusual
type, in that the size of the object itself depends on the contents.

I believe the size of the object is 20+(n/2)*4 where n is the number of
characters in the string. (The result of n/2 is rounded down.)

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too