30 lines
1.4 KiB
Markdown
Executable File
30 lines
1.4 KiB
Markdown
Executable File
[![build status](https://secure.travis-ci.org/russellmcc/node-binpack.png)](http://travis-ci.org/russellmcc/node-binpack)
|
|
# binpack
|
|
|
|
_Deprecated binary packing utilities for node.js_
|
|
|
|
## What's all this?
|
|
|
|
node now actually contains native code for packing binary buffers so this module is no longer needed. do not use in new code.
|
|
|
|
see the included COPYING file for licensing.
|
|
|
|
the core of the module is the set of `pack`/`unpack` pair functions. The meaning should be clear from the name - for example, `packInt32` packs a given javascript number into a 32-bit int inside a 4-byte node.js Buffer, while `unpackFloat32` unpacks a 4-byte node.js Buffer containing a native floating point number into a javascript number.
|
|
|
|
The following types are available for both pack and unpack:
|
|
|
|
Float32
|
|
Float64
|
|
Int8
|
|
Int16
|
|
Int32
|
|
UInt8
|
|
UInt16
|
|
UInt32
|
|
|
|
Each `pack*` function takes a javascript number and outputs a node.js Buffer.
|
|
|
|
Each `unpack*` function takes a node.js Buffer and outputs a javascript number.
|
|
|
|
Both types of functions take an optional second argument. If this argument is `"big"`, the output is put in big endian format. If the argument is `"little"`, the output is put in little endian format. If the argument is anything else or non-existent, we default to "little" endian [THIS IS NEW BEHAVIOR IN 0.0.15 - previous version would default to the native encoding.].
|