is node.js Buffer big endian or little endian?

[dennis zhuang]

hi,all

I have a question about buffer in node.js.Is buffer big endian or little endian by default?Or is it dependent on native platform?

I think this is a big problem in networking programming,anybody knows it?

Thanks.

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[Matt]

It's not endian at all. It is just an array of bytes.

2011/7/4 dennis zhuang <killm...@gmail.com>

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[Alan Gutierrez]

On Jul 4, 2011, at 9:08 AM, dennis zhuang wrote:

> hi,all
>
> I have a question about buffer in node.js.Is buffer big endian or
> little endian by default?Or is it dependent on native platform?
>
> I think this is a big problem in networking programming,anybody
> knows it?

The Buffer class in Node.js is a byte buffer. Endianness applies to
multi-byte data. A buffer is just bytes. Any ordering on those bytes
is imposed at a higher level.

Correct me if I'm wrong.

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Alan Gutierrez - http://twitter.com/bigeasy - http://github.com/bigeasy

[Andrey]

Endianness is an input parameter for int/float serialisers/
deserialisers

https://github.com/joyent/node/blob/master/lib/buffer.js#L487

[Tim Caswell]

Node buffers store data in 8-bit chunks, so endianess doesn't matter.  In the helper methods on buffers, you have to specify the endianess when reading and writing anything over 8-bits long. (http://nodejs.org/api/buffer.html).  Here is an example using the node repl.

    > b = new Buffer([1,2,3,4])

    <Buffer 01 02 03 04>

    > b.readUInt32LE(0)

    67305985

    > b.readUInt32BE(0)

    16909060

Now Typed Arrays from the browser spec, which node also implements, should be little-endian, but there is little reason to use these in node except for cross-platform code.

On Wed, Feb 13, 2013 at 8:15 AM, divya rathode <ratho...@gmail.com> wrote:

hi friends,

           i think buffer is also similar to array,but entirely deals with raw memory allocations like malloc,calloc etc.,not like new and delete operators.but actually what the problem is i cant distinguish those differences clearly..

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