int64be

int64be

Encode / decode big endian signed 64 bit integers

npm install int64be

Usage

var int64be = require('int64be')

var buf = int64be.encode(-42) // returns a 8 byte buffer with -42 encoded
console.log(int64be.decode(buf)) // returns -42

Notice

Javascript (currently) only supports integers up to 2^53 - 1 without any loss of precision so beware of this if you encode / decode any integers larger than that.

API

buffer = int64be.encode(num, [buffer], [offset])

Encode a number as a big endian 64 bit signed integer. Optionally you can pass a buffer + offset as the 2nd and 3rd argument and the number will be encoded into that buffer at the given offset.

num = int64be.decode(buffer, [offset])

Decode a number from a buffer.

length = int64be.encodingLength(num)

Always returns 8. Added to comply with the standard encoding interface in node. Similarly int64be.encode.bytes and int64be.decode.bytes is also set to 8.

License

MIT